More like a bump down.
To be honest judging by its score I didnt even think this game would work, but the beginning looked pretty impressive, heres a couple quick tips for ya.
1. the error zone on the bottom is way to big, it makes the song incredibly easy to play. perhaps add a line in the middle of it to symbolize the exact timing.
2. make sure your songs are PERFECTLY synched with the notes. Otherwise people will be making mistakes that were not his/her own fault.
3. get better techno....
4. a bar uptop will help check how good the player is doing, this game should not be designed that if he gets one out of the area he fails automatically.
5. difficulty modes should also be added, at least 2 per song, itll help less experienced players get better, or challenge better players.
6. add a scoring system, number based.
7. get better techno.
I'm only mentioning these things because this game shows alot of promise.