Wonder Boy III: The Dragon's Trap, known as Monster World II in Japan, is a platforming action-adventure video game developed by Westone as part of Sega's Wonder Boy series. It was published by Sega and released for the Master System in 1989 and for the Game Gear in 1992 as Wonder Boy: The Dragon's Trap. It was ported by Hudson Soft and released in 1991 for the TurboGrafx-16/PC Engine under the name Dragon's Curse.