How do I jump?
How do I use my power shots?
Any stuff I need to know ?
As has been answered already, jump is A + B togeather.
You use your air powershots by running (double press and hold a direction to run) and then jumping, and pressing throw just as you hit the top of the jump. You need to make sure you hit it as you hit the top of the jump, and not on your way down. Still it isn't too difficult to get, but I still don't have a 100% success rate with it.
You use your ground powershots by running, then pressing throw on your fifth step. Easy to do this powershot all the time and I've actually found that they're better than air powershots, which I don't think is normal for the series.
When using custom characters, the special shots are chosen by your birthday. 6th / 11th has the amazing Loop Shot which, as far as I can tell, is by far the best powershot. It's easy to do 15 damage against three opponents with it, and it's not uncommon for me to get two kills with one shot. However I have gimped my character to be like this, since I've given him no points in dodge or jump, as I find them relatively useless.
In order to easily grind experience and money, turn punching and kicking on in Tournament Mode. I'm not quite sure if you still get experience for punching and kicking them when it does no damage (when they have 1 hp) but when I have punching and kicking on (x and y) and I beat them up, I usually up my money to ~1500 / match and experience to ~700 per match.
There's no penalty for holding the ball from what I've seen, so if you're in a close match and they activate their powerup, you can just hold the ball till it's ended, but most of the powerups aren't anything to worry about, aside from the speedup powerup in easier modes, as they make the AI use ground supershots when they usually wouldn't.
JPHRun by holding down the direction with the d-pad.
Really not hard to pick up, yo. huh.gif