Such a good Idea... But you made the game boring. As mr ozzy said: Add some music, speed it up, improve the graphics. I'd also want more levels and more colours.
Oh, also, on lvl 19 you create a wall so high you can't see the other side, so it creates certain problems. You should create some way to maybe rotate the scenario
Great game. Only 2 advices for a better game: the time criteria, which should not exist on this kind of puzzle game; more parts discovered throughout the game. 4/5
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