Man, this game was a freaking blast. Probably my favorite use of the theme so far; those side effects just really add a layer of chaos to this that is amazing to be a part of. (My personal favorite was 8~SPIN~8, followed closely by >>NITRO>>. The ?sdrawkcab one was my arch nemisis.)
Sometimes the controls felt fine and sometimes it seemed like something was off about them, but I can't totally figure what it was. Either way, the occasional wonkiness wasn't a terrible issue to me, and actually sort of added to the rest of the game's hectic and out of control vibe. Absolutely amazing work here overall.