I'm loving the game, but I do have one issue. I'm running the Hyped! music pack, and I'm not sure if this is a problem with all packs or not. But whenever I'm cruising at a speed that borders on any of the three packs (somewhere around 28-30 being the one I peak at right now) the beat begins to transition but doesn't line up perfectly. It makes for a rather jarring track, which kind of takes me out of the game. Other than that, though, I've had few issues and plan to keep going until I finish the game. Awesome job!
It's a great game so far, but I've got one complaint that I would love to see addressed. I've got color blindness issues, which makes telling what color the enemies are difficult sometimes. The runes on the board are quite nice, but I would very much appreciate if I could see the matching runes by the enemy health bars and/or up in the color wheel. If I could get that, I would be able to enjoy the game quite a lot more.
 "Learn to Fly 3"){kind=icon}
 "Dangerous adventure"){kind=icon}