Fun game, but it is lacking mechanics. The one thing I wish it had was making your previous robots more important. Instead of worrying about saving my old robots with low timers, I just focused on the newest robot I obtained. If you were to make it so maybe you have to get into two exits at some parts or split your robots up that would have been interesting.
Other than that the game is fun. The music was done well and the background of the game looked really nice.