Wonder Boy: The Dragon's Trap (1992)

Release Date: March 27, 1992
Developer: Sega

The Game Gear port of Wonder Boy: The Dragon's Trap, a direct sequel to Wonder Boy in Monster Land, you wander through the lands using multiple forms that each have different abilities. Each defeated boss unlocks a new form that has to be used to advance to a new area, while shops give you access to new equipment for money.