This is cute, short, and fun. The chiptune soundtrack is awesome, and the graphics are not bad.
This entire game consists of navigating small platforming levels to reach a goal while avoiding obstacles and projectiles. Pretty basic, but it works. It works because the level design is straight-forward, fair, not repetitive, and alternates between encouraging us to go fast and forcing us to be more careful, creating a nice sense of pacing.
So, basically, this game combines a simple concept with competent level design, and the end result is a really fun series of small levels. The levels are easy (not trivial, but easy) and the concept is not the most original, but it's still a fun game while it lasts, so give it a go if you have a few minutes to spare. Damn, that music is good.