This is awesome!!! Completely new way of doing this (for me at least) and it works supersmooth. The sound effects, the gameplay, the music, the visuals, all perfect, can't say anything less.
Almost got it, 12 seconds left ;-) Two suggested improvements:
- Post the game completely when choosing a powerup. Slowing down make for a nice effect, but it feels a bit lame. Unless you want to force quick decisions, then you should leave it like this ;-)
- Hitting the walls feels like a punishment. It could be me, but I find it really difficult to control the player when the direction changes because of bouncing against the wall. Maybe I need a little more practice ;-)