Wizard Willy is an action/platform game developed by Codemasters for its "Cartoon Time" series of games.
Excerpt from the game manual:
"WIZARD WILLY is the last hope for FIFI the Fairy, trapped in the Emperor's huge fortress! CLIMB and JUMP through the enchanted forest, enter the dungeons, climb the castle, and get out onto the battlements. You must collect ALL 10 of the MAGIC EYES, before you confront the GUARDIAN SKULL at the end of each level. If you can beat him, you proceed onto the next level."
The player controls Willy, he can shoot bolts of lightning and collect spells to gain more bolts, regain energy or destroy all the monsters on the screen.