The energy of final enemies is displayed as an energy bar (red to green) next to the active spells.
In the inventory you can find all the items which Stevie collects and which he can use.
This includes all weapons and spells. The inventory can be accessed by pressing the inventory
key (letter key I). The game then enters the pause mode and you can safely select
the desired weapon or the desired spell. A red bar with a short description appears at the bottom
of the screen. The number in brackets indicates how many spells or how much ammunition you still
have at your disposal.
All collected spells are displayed with a colored symbol. Spells which you have not collected or which you have used up will be identified with a darkly shaded symbol.