Woah, awesome! You know I like grids, and I really enjoyed the game! :D
The concept was great and I enjoyed figuring out the rules
Everything was well animated and there was nice feedback on all actions. I think that contributed to making it so easy to understand.
I really liked the progression from fairly simple interactions to more and more complex puzzles.
I got stuck for a long while on level 7. Kept hitting 32 but could not get 33, grrr... I got it in the end, though. And I had fun figuring it out!
The music was cool, it fit the game well and kept being fun to listen to even after I had been playing for a while.
Nice sound effects too!
Great game, guys!
Oh, and it looks great (as always ;)!