Really enjoy it but the timing is waaaaaaay too hard. And there is something missing somehow with the turbo thing. Using it on the maps with longer stretches allows you time to prepare for the next checkpoint, but on the small maps, there is no time to prepare for the next checkpoint when the turbo runs out. Could the scale be bigger in general? Or maybe be a little more lenient on the time limits. Frustration is only fun for a while. Cool concept, though! Definitely gets the heart pumping.
Fun game! Feel like the endless level comes too quickly and the missions are not worth trying to get. Finished the game with only about 20 missions finished. Full rank and all upgrades soon after that. Maybe a tweak to money and XP rates? Still, very enjoyable game, I've been playing it way too much!