Nice visuals and audio :) Tried it on easy mode as suggested hehe but it's really too hard for me. The objects come at you too fast and it takes too long to learn how the movement has changed. Adding in a visual aid like a visual representation of the arrow keys with their replacement direction would help a long way. Maybe a sound for countdown to next change could intensify things. Maybe slow down enemy objects more in the start of the game and the fun factor would increase significantly.