This has got a lot going for it. Nice graphics, great animation, and overall well established quality. There's only one thing missing though, the sound.
Where did the sound go? Did it decide to skip work and leave everyone with this unfinished flash? I have to say that the lack of sound is a major downside to this. It ruins it for me.
Besides that, its a pretty good flash. It even has an established looping effect. One thing I would also like to reccomend is some more color or at least a background. Oh yeah, and SOUND!
You're right, this did make me rage.