Cool idea and fun take on the theme. And it looks really clean and fun. I like puzzle games and even if this was a little easy it was fun to explore and unlock all the doors. Puzzle games are hard to rush in such a short time. And I didn't notice any bugs. The white squares even handled odd collisions with the red square very well. It would be cool to see what more you can add to this game to really let the idea run. Great game, great job!