Pretty fun game. I managed to clear some levels and had fun bugging out of the map too. XD
I think level 2 and level 3 should be swapped, since in level 3 we are taught how pressure plates work, but in level 2 it's just there without a tutorial. It took me a while to make it work and that's why I decided to go out of the map and try beating the level like that. I managed to place Green and Blue, but Red wouldn't climb out of the walls. XD
The controls were a bit difficult to use. Instead of rotating the characters, I think it would work better to have the arrows directly move them north, south, west and east. At least it would help for easier navigation.
Good game.