Juicy stuff! Very good polish, I like the slow downs, gotta try doing that sometime!
I felt like I got hit by invisible stuff sometimes... Maybe I'm just a bad loser, but I didn't see any incoming projectiles really.
One thing that would have been good is if the tutorial didn't show after having proven that I understood them. They took quite some time to get through when I just wanted to get going again.
The sound was a mess in firefox for me, so I installed windows client instead. Much better there.
Very impressed by this entry. Nice controls, very smooth ride. Well done!