Erm, the Hanatchi isn't bad at the Jump game, usually people blame they're Tama for being bad at a game, when it's really, Ehem...the owner of the Tama .
Exactly. You yourself have to be quick, not the tama. It does jump less or more depending on it's weight, but it's still your quickness that makes it jump.
Hanatchi is very bad. It means you have starved your tama once and kept the dicipline low. And you cannot have a 100 pound tama AT ALL. The maximum weight is 99 pounds.