Hm, I can't think of many right now at this moment. I know BLUE BIRD would be my #1 jumpable song.

The chorus is ridiculously bouncy. XD
Angel's Song is another one. Especially after seeing the live performance.
You can't forget Inspire.

I end up doing more of a hoppy bunny-like motion rather than dancing, though. >_<
Bold & Delicious is one of the ultimate jumping songs.
The last part of Humming 7/4 is EXTREMELY dancible, no matter if you like the whole song or not.
And of course, Talkin' 2 Myself.
For some reason, though, I can't dance to STEP you. I don't know why that is.
P.S. Impact, I read this as "Jumping off the bridge" and I thought you were going to commit suicide. I came in with full intentions of throwing out some really long speech about how you have so much going for you. Then I realized what was going on. >_< It also briefly occurred to me to tell you that you, as a mod, should know those sorts of threads go in the chat-room, not that Ayu Chat-room. XD