Hydro Thunder - Cheat mode

Start with a 4 second boost:
First, start a practice race. When the number 3 begins to fade, press and hold down X. When number 2 starts to fade, let go of X. When 1 starts to fade, press and hold X. If this was done done correctly, you should immediately start off with a extra-fast start and a 4 second speed boost

Unlocking hard races:
To unlock the hard difficulty races come in 2nd or 1st in all three middle races.

Unlocking MIddle Races:
To unlock the middle difficulty races come it 3rd, 2nd, or 1st in all three easy races.