Wonder Boy III: Monster Lair (1988)

by Christopher
6 minutes read


Wonder Boy III: Monster Lair (1988)


Wonder Boy III: Monster Lair is a side-scrolling action-adventure game developed by Westone Bit Entertainment and published by Sega for the Sega Master System in 1988. It is the third installment in the Wonder Boy series, following Wonder Boy (1986) and Wonder Boy in Monster Land (1987). The game was ported to various home computers and consoles, including the Atari ST, Commodore Amiga, and NEC PC Engine.


The game takes place in the peaceful town of Xenobia, which is under attack by monsters. The player takes control of either Leo, the protagonist of the previous games, or Priscilla, a new character introduced in this installment. Both characters are tasked with finding the Legendary Weapons and using them to defeat the monsters and their leader, the evil Mecha Dragon.


Wonder Boy III: Monster Lair is a side-scrolling action-adventure game similar to its predecessors. The player controls Leo or Priscilla as they explore various levels, fighting enemies, collecting items, and solving puzzles. The game features a variety of weapons and power-ups, including swords, axes, and magic spells.

One of the unique features of Wonder Boy III is the ability to transform into different animals. By collecting animal orbs, Leo and Priscilla can transform into animals such as lions, birds, and fish, each with their own unique abilities. For example, the lion can breathe fire, the bird can fly, and the fish can swim underwater.


The game consists of six levels, each with its own unique theme and enemies. The levels include a forest, a cave, a volcano, an underwater level, and a final castle level. Each level is filled with puzzles, traps, and boss battles.


  • Leo: The protagonist of the previous Wonder Boy games, Leo is a young adventurer who wields a sword and shield.
  • Priscilla: A new character introduced in Wonder Boy III, Priscilla is a princess who uses magic spells to fight enemies.
  • Mecha Dragon: The main antagonist of the game, Mecha Dragon is a giant mechanical dragon who terrorizes the town of Xenobia.


Wonder Boy III: Monster Lair was a critical and commercial success upon its release. It was praised for its graphics, gameplay, and music. The game was also a hit in arcades, where it was released as a coin-operated arcade game.

Wonder Boy III: Monster Lair has been included in several lists of the best Sega Master System games. In 1989, it was ranked number 12 on IGN’s list of the top 100 Sega Master System games. In 2017, it was ranked number 24 on USgamer’s list of the 150 best Sega Master System games.


Wonder Boy III: Monster Lair is considered one of the best games in the Wonder Boy series. It is also one of the most popular and well-regarded Sega Master System games. The game has been ported to numerous platforms over the years, and it remains a popular choice for retro gamers.


Wonder Boy III: Monster Lair is a classic side-scrolling action-adventure game that is still enjoyed by gamers today. With its charming graphics, addictive gameplay, and memorable characters, it is a must-play for fans of the Wonder Boy series and retro gaming in general.

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