Extremely basic, but not bad! I like the graphics and music, and the gameplay works well enough, but there are definite issues with advancement. I like that it's the number of turbos on screen simultaneously that increases, rather than their individual speed, etc. But the first game I played, it wasn't until around the twelfth turbo that they started appearing two at a time, and in subsequent games, they continue to come one at a time until somewhwere in the forties, at which point they leap straight to 3 or 4 at a time. I'm figuring this inconsistency is some kind of glitch, but assuming my first game was how it was intended to work, it should probably ramp up a little quicker; dodging 4 or 5 single turbos one at a time is probably plenty for a new player to get up to speed, and taking longer than that for things to get interesting in later runs is somewhat frustrating. I also feel like this game could stand a little something extra. Maybe you could have good things for the Cuboid to pick up, in addition to turbos for it to dodge? Maybe just little blips you could grab for points, or possibly powerups of some kind. Just throwing ideas out there!