You can activate cheats by renaming the ship. Press F2 and click on the name of
the ship - erase it, and change it to one of the following names:
GodMode : Turns you invincible.
ExpBooster : You get 10,000 exp. points
MoneyBooster : You get 10,000 in gold
BestSaber : You get best sword (but you have to be that level)
BestGun : You get best gun, but you must be required level.