Might be a good game with a mouse but man... Playing Unity games alone with a trackball blows. That wall-jumping thing is way too hard without a mouse. Can anyone pull that off with a trackpad?
Nice way to use physics as a puzzle game. It does get boring after a while however. Maybe some more types of blocks, or other force influences could be interesting. Multiple "face" blocks instead of just one could make some levels a bit more challenging. The last one (before the "THE END" level) where you have to balance it like a unicycle is probably around the max difficulty you want to push this game.
Very great game idea for the #LD20 round. Runs great, a nice twist to Portal. I would just suggest better controls. Instead of "switching" between 1, 2, 3 - maybe the keys could automatically fire as soon as you press the keys. And the 'E' key seemed to get in the way sometimes (accidental removals). Perhaps switching that one to "solidify" and the right-click for removals would be better.
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