U know the one.... Can't seem to get over it

if you hold down on the d-pad you will gain more height. You can influence your jump any time by pressing up down. However when you land you want to be holding down I think to maintain all your speed. You will also need that trick if you want to do the port town shortcut.

I recommend you to read this page. Most techniques of this game are explained there: http://fzerocentral.org/viewtopic.php?t=195

U sir are very helpful and handsome... U get lots of bitches bro... Thank u is basically what I'm trying to say