Awesome.

I must say, I haven't found a game that is so simple yet entertaining for quite a while. The objective is so simple and the controls are very easy (3 keys) and the graphics were quite interesting as were the sounds, even though there weren't many. I also felt like the player was actually running and jumping, while most games like this I don't really "feel" it and seems artificial. Also, it was challenging enough to test most players, yet at first it was a bit too hard.
The only real problem I actually cared about was the fact that on numerous occasions I felt like I dodged a flying spike or jumped over one, but it turns out I still got hit. Aside from that, I felt like this was a great game.