I've played about half of the levels so far; very good everything I've seen so far and some nice challenges.
On Out with the Bathwater:
I like the design a lot; nice use of the set to make a faucet with running water
. My solution is for the first version didn't get to try the latest version.
On Icho's Spider level:
Haven't tried yet but I like the concept a lot. It's a large level but the over-all concept is somewhat simple.
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On my levels:
I've updated Copenhagen Int, Icho backrouted but Apjjm found the intended solution!
My solution doesn't run quite so tight on the time limit
Not sure exactly why at the moment but one thing I do differently is have the initial diggers dig down farther (closer to the switches)
I haven't updated Terminal Velocity yet; not sure how I'm going to fix it. I sort of intended this to be a fun level but not as simple as these solutions so I'll try to come up with a good fix.