Remove delay after choosing a new skill (there is still a delay after levelling up an attribute, as intended
Preload images (done in a fragile way though)
Changed bonusToHit to be more of a bonus. (Makes Shot always easier to hit with than Super Shot.) Made Drain more accurate.
You cannot use moves if you don't have enough energy. Enemies won't try to use moves if they don't have enough energy.
Disable buttons for actions you cannot use