Ah, I recognise my Lemmings World Tour level “In the army now” (which is in itself a NeoLemmix remake of the L3D level “This is the army”).

So the Boomerang, in this case, would fling the lemming back over that wall?

Here are all the frames for the Bazooka sprite.

If we fire the bazooka strictly horizontally we may not need frames 11-18 as they aim upward.

Any lemmings close to the detonation crator are affected and flung. I couldn't get the lemming firing the bazooka to be flung except once when i fired into the ceiling direcly above him.

The bazooka misses lemmings and hits terrain. Which would make it good for hitting zombies and balloons.

I think the Ballers look good but only if they don't roll too far. It would seem odd to me that a bazooka caused several lemmings to all roll around.

I'd probably prefer more of a jolted toss. but a roll could be good if its not too rolly. My opinion.

Some decisions on the Batter:

The Batter will not be a ranged skill, and instead will function like the Lix Batter, only affecting lems in the immediate vicinity.

The "bat" will be another projectile type, like spear or grenade; we already have a way for lemmings to detect the presence of airborne projectiles, and this works nicely; makes sense to re-use this same logic for the Batter. The obvious difference is that the bat will not be thrown, but instead will take effect during a particular frame of the Batter's animation.

During the Batter's "hit" frame (when the bat is at full extension in the animation), any lems that are in contact with the Bat's collision area will become Ballers - the exact physics of these lems has yet to be decided upon, but current instincts are that it should be a much less complex response than the Lix Batter*.

*Having thought about this again recently, and having re-read Proxima's list of reasons for supporting this skill, I think the Baller's movement should closely resemble (if not exactly be) that of a Jumper; a sprite-swap might be all that's needed, and then we can simply re-use Jumper physics - this would keep the skill action relatively predictable and would cover all of the benefits mentioned by Proxima, as well as drastically reducing the potential workload.

I would recommend giving the batted lemming a higher and wider arc than the Jumper.

When working on the Hoverboarder skill, I tried modifying the jumper arc for Hoverboarders and (while partly successful) discovered that it’s a lot of extra work for very little gain.

Jumper code is extensive throughout the project and it has a lot of edge cases that would all need to be duplicated for any other "move through the air" actions that aren’t in a straight line and which require complex position checks (note: there is still a Jumper bug in both NL and SLX that neither I nor namida have yet found a fix for!)

I’m not completely ruling out a larger arc, but let’s see how it goes with the much, much, much easier method of re-using what’s already there first; in practice, it might be plenty good enough. The challenge you describe would still be possible to create, even in a level providing both Jumpers and Batters.