Everyone's seen this with game titles, movie titles, etc... so I thought, why not do it with names of lemmings levels?
Here's some to start off:
Worra Lorra Balls
Balls Can Wait (We Hope!)
The Ascending Balls Scenario
Balls or Nothing
The Steel Balls of Kessel
Pop Your Balls
I haven't actually seen this elsewhere, but sounds fun enough:
What a BALLSOME level *cringe*
Livin' On The Balls
Upsidedown Balls
Balls Soup
And then there were balls....
Smile if you love balls
Hmm, should make "What a BALLSOME level" sometime, considering there's already "What a carsome level" for L++, featuring the caravan in my avatar 32 times. (In that regard, I'm surprised there's no "What a nessysome level" yet, considering nessy is everywhere...) "Spam, Spam, Spam, Egg and Nessy". "Downwardly mobile car" induces a funny image with me, for some reason...
But as we're on about balls:
Tubular Balls (close enough)
The silence of the balls
The chain with no balls
EDIT: attached is screenshot of carsome level. Should upload all the levels (includes a lot of junk, like this one, so I'm not sure you want to try this after all...)
considering there's already "What a carsome level" for L++, featuring the caravan in my avatar 32 times.
Hmm interesting, I'll need to try that. Would I be able to get the level through some link in some post in the L++ thread?
"Downwardly mobile car"
Haha, good one!

And more balls:
Keep your balls on Mr. Lemming
Don't let your balls deceive you
Don't do anything too ballsy

Take good care of my balls
wow that sounds gayBalls just keep on coming
...and even gayer...Mary Poppins` balls
ewww
Balls Suction Function.
Balls Blaster.
King Arthur's Balls.
Stop your ticklin' Balls!
Ceci n'est pas un ball.
Attached level is called I've got some balls.
-- Simon
I cannot believe this topic has taken off... or that I'm going to contribute. Has the forum really stooped this low? Oh well...

Lost balls?
Steel Balls
You take the high balls
NO BALLS
Custom balls for lemmings
"Balls" being a euphemism for failure opens up some possibilities:
Only floaters can balls this
How do I balls up the way?
Time to balls up!
Also: Any one-word title -> Balls. Or alternatively, BALLS!!!!!!
or if you prefer, BBBBBBAAAAAALLLLLLLLLLLLSSSSSS!!!!!!
A few L3D ones:
Balls Inside
Attack of the 50ft Balls
Spaghetti Balls
Across the Balls
Family Balls
Five Balls
Final Balls
This should be fun.
Just balls!
Tailor-made for balls
Now use balls and climbers
You need balls this time
Turn around young balls
Careless clicking costs balls (this can be true in a way, if you overuse your bashers, miners and diggers)
The Balls Gallery (this is actually true, as the level itself is laden with lots of balls)
Balls in the attic
Balls soup
Stepping balls
Lemmings Balls everywhere (though Balls Balls everywhere would be a lot funnier

)
Rainbow Balls
Across the Balls
...
Five Balls
These two could be from ONML as well
More from ONML:
Balls For Presidents!
Dr Lemmingballs
Got anything...Ballsy???
Inroducing SUPERBALLS
Oh No! It`s the 4TH BALL!
Temple of Balls
Synchronized Balls
and of course.......
BALLS JOKE
Some more ONML ones:
Worra load of old balls
Lemming Balls
Balls Discomforts
Balls Control
It's all a matter of balls
And this is kinda cheating, but a few from Lemmings Plus DOS Project (just from PSYCHO, for now):
Balls Outside The Square!
Turn Back With Balls
Ballsburner
Three Balls With One Stone
Balls High Balls Low
Return of the Balls
No Balls To Die
To The Balls!
No Balls (not that this hasn't already been done with an ONML title =P)
I won't defile my own levels in such a manner... not yet, anyway.

L2:
Hit the space balls
Do balls remember?
The magnificent balls
Balls of stone
DONALD WHARS YER BALLS
EAT MY BALLS!!
a few more L2:
Beach Balls
SAND IN YER BALLS
Balls Powder
A stompin' good ball!
Big Balls Time
BALLSACHE
BALLSTRIS
The Secret Of BALLSH / The Balls of LEMH
What're balls like up there?
G1ued to the Balls!
The Magic of Balls
Balls Frolics!
SPINNY BALLS...
It's inevitable, but here's to the defiling of a sacred holiday:

Balls for Kieran
Balls Play
Balls on the Rooftops
Lemming Balls in the Snow!
Floating Balls Flurry
Oogiballs!
Check Your Balls!
Balls...The Motion Picture
And a truly unique one from the Holiday Lemmings series:
Bas! (No L)
[or alternatively, Bals! (No L)]
Balls Play
Could also be "Four balls", to go with the two instances of "Five Balls"
Okay, I may as well defile the rest of my levels as well:
-MILD-
Just Balls
In The Balls Of...
The Balls
Wish you had balls?
Take Your Balls...
On The Balls
On The Other Balls (heh. these two go so well together =P)
Farewell, My Balls
Crying Over Spilt Balls
Balls Not Reccomended
Up To Where Balls Go
Blow Balls!
With A Little Balls...
The Descending Balls Scenario
You Just Lost The Balls!!!
-WIMPY-
Two Balls
(Also they are balls.)
Balls of Despair
Balls, The Universe & Everything (or any other variant of that =P)
A Ball Would Be Handy (heh... or take out the "A" at the start then you can actually use "balls")
One Ball At A Time
Down With The Balls
Get balls, balls, balls!
-MEDI-
Getting Balls...
Balls Blast
Balls of Faith
The Balls of Lemmingsville
Bob's Balls
Balls Up!
All Roads Lead To Balls
Shooting Balls
The Lonely Balls
Six Balls Under
Ghostly Balls
Balls of the Lemming
Balls Up High
Consider Balls...
-DANGER-
Metal Balls
In The Balls of a Lemming
Some Kind Of Balls
Alternative Balls
Unholy Balls
With A Ball or Two
Balls of Wisdom
When Life Gives You Balls...
Balls In All Directions
Circular Balls
Balls Rotation Syndrome
Die the Death of the Balls
Lair of the Fallen Balls
Use The Balls!
So that's the balls...
Deadly Balls
Balls Problem
** EDIT **
And to reflect the latest update that introduces or renames a few levels:
Russian Balls
It's The Balls Craze!
<Simon> Lemmings Revolution has the best balls level anyway. What a nice pair of balls!
<geoo> XD
-- Simon
And now, the end is balls...
Balls on Earth?
There's balls in the method
Balls will help you here
If only balls could fly
Watch out, there's balls about
One way digging to balls
Lock up your balls
Feel the balls! (

)
POOR WEE BALLS!
Curse of the Balls
Feel the balls! (
)
We have a winner.
Also, your first one, I think it'd be better as "And now, the balls are near..." =P
I guess that works, but then you have to change two words, which (so far at least) I've been trying to avoid.
I guess that works, but then you have to change two words, which (so far at least) I've been trying to avoid.
I see. But I'm not sure it really counts to ungrammatically keep "there
's" when it's followed by "balls".

(At the very least not the one based on Havoc 5.)
"OH NO it's the 4th Ball"Sounds like a refrence to baseball
But here's mine
Rondezvous at the balls
Save Balls
Just a Balls
It's Lemmingtry Ballson
Rent a balls
Tailor made for balls
Ballszone
Suicide Balls
Curse of the balls
I'm over at Simon's and we're having a ball! Haha.
Yeah, and I'm backballing his levels.
-- Simon

For the Sega Master System version fans.

BALLS ONE
BALLS TWO
BALLS THREE
BALLS FOUR
and
BALLS FIVE
Tea time in the ball country.
oh wait, we're supposed to alter it.
I laughed at this thread

my favorites:
the Steel Balls of Kessel
Pop your balls 
Balls Soup 
Smile if you love balls 
Got anything...Ballsy???
Balls Discomforts
Feel the balls!
What a fantastic pair of balls
a few from Revolution:
Which Balls are which?
The Long and Winding Balls
Odd Balls
Designed with Balls
the Iron Balls
Nice balls, tex!
Can't get balls from here
Booby balls
Ouch Me Balls

The Legend of Smelly Balls

Touch the balls, turn around
Let's get those balls moving
Two balls final
Anger, Love, Balls
My finest balls
no balls ... hee hee hee hee!
It's Going to take balls <<<<
How has no one said just
Balls
to replace Perseverance?
Clam already generically covered the one-word title case
here:
Also: Any one-word title -> Balls. Or alternatively, BALLS!!!!!! or if you prefer, BBBBBBAAAAAALLLLLLLLLLLLSSSSSS!!!!!!
To be fair, it's about the least exciting result you can get out of this game.
Now that the thread is revived from the dead, let's get it up to date with current times and go defile us some Lix levels!
here are some from Lemmings Paintball (this game should be perfect for this thread)
One of our balls is missing

balls on a hill
Only built for Lemming balls
Oh Balls!
Bouncy Balls!

Happy balls
Next we have cuddly balls

Mamamia the balls is Moving
Delicate sound of balls
Comfortably balls
The booby balls (again...)
Come fly with balls
What could possibly be in balls?

Four Balls and a Flag
Lemming Long Balls
There are more but this part of finlay+LemSteven's excel spreadsheet isn't finished and I don't remember the names of the rest of the levels right now.
You guys are nuts, and that's why I like this place.

Alas, the one that really tickled me ("Just balls") has already been done, so, here are a few others, from various games.
You live and balls
... And a Happy New Balls!
The Balls Machine
Castle Ballsalot*
A Shortcut Through the Balls**
*Does this one count?

**Sounds painful.
some more from Paintball
oh balls and double balls!
mission balls
If ya can't beat balls, join 'em
gatecrash balls
A lovely pair of balls!?!
balls denied
Balls Mountain or Lem balls
Balls on the run
Charlie's balls
balls away
Missing balls
New balls in town
Grossi's Balls
4 balls a-wondrin'
Trail of the moving balls
Curse of the balls!
Mutlicoulored Lem Balls
and a level I'm working on: The Lemming with the Golden Gun
The Lemming with the Golden Balls
Tripple Balls (could you imagine!)
Balls Trouble (no need to imagine!)
Redezvous at the balls.
Im too lame to check if any of these have been mentioned, but with a very limited level base, Im almost certain at least 1 of them has already.
GG
Edit: I just hit post #100. Yay for taxing upgrade! I've got baaaaaaaaallls of steel
I was waiting for a Duke Nukem reference

The Last of Lemmings Paintball. Now all games from L1-Revolution are "balled" .. wait no Idk If anybody did Lomax... [goes to look up Lomax for the first time only for this purpose... shameful?]
Those Magnificent balls
Teaching a Lemming new balls
The Twelve Balls of Lemming
Big balls in Little Level
Big Trouble [with] Little balls <<<that can be a lot of trouble

Balls in the Woods
Babyballs 5
Balls of Faith
Balls Flambé
The Last Red Lemming's balls
some more from my own:
Jacob's balls
the balls are right there!
balls, stage Right
Love and Hard Balls
Tinker Tailor Soldier Balls
Ballsing my own levels, starting with Insane.
I Am B.A.L.L.S. (could work for the original too

)
Run around the balls
Builders' Balls (as if their cracks weren't bad enough!)
Hello, Balls
Bumpy Balls
Pick me balls
I've got the balls on a string
Leaky Balls Syndrome (nasty)
Balls to lose
Hall of Balls
Square Balls
Wrap your balls around this one!
BALLS AND DIE
Hidden Balls
Lord of the Balls
Skipping balls
Mental Balls
Balls Breaker
Loose Balls
Sand me balls (owww)
Builders without balls (clearly not the same builders as before)
Turning the Balls
Tribute to Balls
The Balls Compendium (sounds like this thread!)
MORE WEE BALLS!
Works on so many balls
Balls on so many levels
The endless balls
Throw the balls
Infinite balls
Wall balls
Called in the wrong balls?
About balls! (this thread sure is)
From the current crop of multiplayer levels...
Last Balls Standing
Deep Balls / Balls in a Cell
Balls in the centre?
Balls Service
Pancake Balls / Balls Compression
Brick Balls
Some from LPII:
Holding Balls For A Hero
Get Your Lemmings' Balls
Fun With Balls
A Two-Balled Approach
Balls Rescue Proceedure
Still No Balls To Die
Wrong Balls, Mister Lemming
Balls Central
And of course, the one you'd have a hard time NOT coming up with...
Balls Frenzy
Flingsane levels
Balls Unstuck
Falling Balls / Balls Forever
Another pick in the balls
The Great Balls of Lix
Extension Balls
War of Balls
Balls Pop
Two balls, too far
Balls Tactics
Experimental: Balls
Fling Balls
I feel the need to compile the best balls because clearly I have my priorities in life straight
I'm gonna start ballin'

The Steel Balls of Kessel
Pop Your Balls
Smile if you love balls (definitely dirty)
Keep your balls on Mr. Lemming
Take good care of my balls
Mary Poppins` balls [that puts an interesting take on that movie....]
Balls Suction Function.
Stop your ticklin' Balls!
Attack of the 50ft Balls

[there are real pictures to go with this but too shocking for here]
Balls Discomforts
SAND IN YER BALLS [eck this 1 thing I don't like about the beach]
Balls Frolics!
What a Fantastic Pair of Balls! <<<<<
Check Your Balls!
Farewell, My Balls

Feel the balls! (

)
the Iron Balls
Booby balls
Ouch Me Balls

The Legend of Smelly Balls

Touch the balls, turn around
Let's get those balls moving
It's Going to take balls <<<<
One of our balls is missing :O
Bouncy Balls!
Next we have cuddly balls
A Shortcut Through the Balls **Sounds painful.
Big Trouble [with] Little balls
Balls Flambé

Builders' Balls (as if their cracks weren't bad enough!)
Leaky Balls Syndrome (nasty)
Sand me balls (owww)
MORE WEE BALLS!
Holding Balls For A Hero ....
The Great Balls of Lix (...I thought they were female creatures...)
Farewell, My Balls 
Hah wow, what was the original name of this level? You could also make this one off one of the LPDOS levels. Unless that's exactly what you already did... (I'm thinking of Mild 16 "Farewell, My Lemming")
EDIT: Nevermind, didn't realise you were compiling some of your favs rather than submitting new ones.
This is hilarious.

A few PimoLems balls then:
Better Run for Balls
The Strange Balls of Lemnos
These Ain't No Jedi Balls
Have A Balls Soda
Take on the Balls!
Underground Balls Storage
Let Them Eat Balls
Triumph For Their Magic Balls
Have Balls, Will Travel
When I think of balls, I think of Lemmings Paintball.
Easy Balls
Difficult (BALLS!)
Balls on a Hill
Balls built for Lemming Use
Balls! Who Goes There?
Moonballs Alpha
Balls the Flag's over there
What Happens when Balls stand here?
Float to Balls
Lemmings Paintballs?
I guess you're right, or maybe Lemming's Paintballs.

Balls the Flag (Ah, that's the nickname.)
Time Balls
Balls Blast!
Balls Law (
Wikipedia link)
Happy Balls
Mamamia the Ground is Balls
Lower that balls

Comfortably Balls
Charlie's Balls (Sorry,

didn't mean to offend anyone)
Snow Balls
Easy Peasy Balls Squeezy

Come Fly with Balls
What could possibly be in Balls? (Don't ask me)
Balls control
If you can't beat 'em, balls 'em.
A lovely pair of balls?!?

Lemmings on the Balls (A Circus classic)
Balls away!
A walk through dark balls
Grossi's Balls (Again, I'm so sorry but I couldn't resist)
Trail of the Moving Balls
The Red Balls connection
lets move on from balls and just do any kind of replacement; (unless somebody wants to start a new thread):
from FUN:
only specially trained airline pilots can survive this
morphine will help you here
As long as you give up right now
Don't do anything too intelligent
You Live and Die
Let's be careless and walk off a cliff
--am in the middle of making a "Lemmings Unrated titles" version. Some of them are so dirty however, I'm afraid even to attach a text file..

PM me if you want to see it.

If I attach it with a warning of bad language is that okay?
The whole point is generally to see what ideas you can come up with using the same word; while I agree it might be time to pick another word (perhaps something that requires a bit more creativity, or at least something that's not a body part, to avoid repeating similar things with a different word - otherwise you get cases like on the FFX board on GameFAQs where, without fail, the first suggestion posted in any topic of the kind is Seymour: "Feel my ____! Come, Anima!"), let's not just go generic.
As for the X-rated stuff, I think the general consensus here is that the majority, if not all, of the boards' users are mature enough that it's not going to be a problem. I would think posting it would be fine; maybe if you want to be careful, put a warning and hide it the same way we hide spoilers.
I can't post it cause forum automatically censor's swears

anyway there it is: WARNING: very bad language!

some of my favorites:
Keep your pants on Mr. Lemming
Here's one I penetrated earlier
The Fart Gallery
Kidney stones
The ascending penis scenario
I'm fairly sure the word filters on here have been long since disabled... let's test it.
f*** s*** ass arse **** cock nigger bitch faggot wanker bastard pussy asshole obama
Okay, so it censors out all but the first letter in the F word and the S word, and censors out the entire word (including the first letter) on the C word. Apart from that, it seems we have no censors. (By the way, the reason I put "ass" and "asshole" seperately is because some sites (for example, GameFAQs) ban the latter but allow the former.)
Anyway, of the ones you posted in the quote box, only the 2nd and the 5th should offend even the most uptight of people. No one cares about farts anymore, and the rest I don't even see how anyone could be offended by. =P (However, me and my small mind were highly amused by the 3rd one.)
I'll check out your full list now...
Hm, with a few new large packs (LPIII, LPO, the cLemmings series...) and Lemmings Touch we might have to revisit this topic...
Now use miners and balls
Hmm...
Quote from: mobius on January 16, 2014, 10:16:57 PMfrom FUN:
only specially trained airline pilots can survive this
I'm actually really liking this first idea you had here; "specially trained airline pilots"...
Specially trained airline pilots all fall down
As long as specially trained airline pilots try their best
If only specially trained airline pilots could fly
Specially trained airline pilots can wait (we hope!)
Or some other incredibly specific and possibly nonsensical phase, like "horse detectives":
Smile if you love horse detectives!
Lock up your horse detectives
This should be a horse detective
Don't let your horse detectives deceive you
Detective McHorse will help you here