Wonder Boy III: Monster Lair is an arcade game released by Sega in 1987. It is part of the Wonder Boy series, known for its action-adventure gameplay. This version was released for worldwide distribution and utilizes the System 16B hardware. Gameplay involves exploration, combat, and collecting items. The original game was developed and published by Sega.

Wonder Boy III - Monster Lair (set 6, World, System 16B, 8751 317-0098)

Wonder Boy III - Monster Lair (set 4, Japan, System 16B, FD1094 317-0087)