I like it! Discovering the multipush rule is a nice touch.

Nice.
Took me a while to discover the multipush mechanic.

Took me absolutely ages to figure out what I was meant to do. Maybe I'm being stupid, but some visual clues might've been useful! (I got to the game from your twitter, so I didn't see the instructions here, but it's still pretty obscure). Good solid puzzle rules otherwise though!

Fun. Nice mechanic. Aches for a multi-step undo button/key.

Found hard to play, no instructions! but after found it was an ok game :)!

I actually like how the one multipush level requires you to discover the mechanic to advance, though I mostly discovered it by accident, so that's a bit of a wash. And restarting the whole thing after one wrong move did get a little old, but that's obvious.

Biology!

Nice puzzle mechanic. Gets quite hard really fast though.

Not bad for four hours! Could do with a *little* polish obviously, but the puzzle mechanic is really nice.

The sound effects are the best! I love puzzles like this one, would love to see more of it!

Yay biology!

you won't win an oscar for graphics/presentation but it's a very solid and enjoyable game, wouldn't expect less from you anyway

so far this is the only educational themed game I've encountered - so you're getting some additional love for creativity :)

yay biology

Clever mechanic; I had trouble with multipush too, and found it pretty difficult.

Love the concept and gameplay, awesome work!

Fun game. With some work it could make for a nice little iOS game, like These Robotic Hearts of Mine :)

Yay biology! I got stuck on the one that is impossible without multi-push and I was going to come and tell you that it's impossible, but then I read the spoilers. I wish the game had telegraphed that better. But it's a good and creative puzzle with that rule!

I love the puzzles, cool concept of filling space in the right order. It would have been nice if there were a button for restart instead of having to use the keyboard since the game itself doesn't require keyboard. Too bad no music... wonder what you would have gone for in that department. Also, big bonus points for included a level editor.

It's not working for me :(

It took me a while to figure out how to make moves but once I did (and once I discovered multi-push) it was fun. I liked the audio. :)

This is a really nice little puzzle game.

Cool! Nice idea. The push thing certainly wasn't obvious to me, but it certainly makes for some creative thinking.

Excellent puzzle game! I wish I knew about the pushing before pulling my hair off, but once I found out I almost became excited :-P

I like it; can't believe you designed and developed it all in 4 hours! :)

I would have given up pretty quick, but I read some of these comments and got the multipush tip.

Interesting game. It took me some time to realize you can push a whole stack. The editor is a nice touch also!

Yay, I beat it! Really clever puzzles with an interesting mechanic. The level editor is an especially nice touch.

I had a few *lightbulb* moments while playing, which was nice.

Awesome for four hours!

I was too stupid to figure out the multi-push rule on my own but the rest was fun to discover :)

Fun puzzle games always get five innovation stars from me because inventing fun puzzles is hard.

Great game! Simple yet challenging. I managed to make it to the end.

Yay, biology! Great idea - don't know how innovative it is, but I find it pretty clever and fun to play. I don't see that much connection to the theme, but I find it very entertaining anyway.

This idea is awesome.

Yay, biology! Your voice acting is, as always, exquisite

This is my favorite puzzle game of this Ludum Dare. Really really clever and rich puzzle idea. Great work. The first board with a 4 was really tough. I think in general more open boards are harder because there are more possibilities. Finished the whole thing, and glad I did!

Obviously a little more polish would be nice, but for a 4-hour entry it's extremely playable. Some boards are a little tough, but the underlying mechanic works really well (and makes you feel super-smart when you finally beat a puzzle). Great sounds too ;)

Original and interesting puzzle concept here. This game made me think of Q Billion.

This game seems "small" and that's probably a good thing, I liked the efficiently minimalist graphics. I feel like I could play this for a long time when I have more time to devote to it.