An evil dragon, named Meka, and his minions conquered Wonder Land, turning it into "Monster Land", and only Tom Tom (the famous Wonderboy from the first game) could stop him from his evil plans. During your journey you will face many of Meka's allies in many sizes, plus a big boss in the end of each level (27 big bosses in total). By killing them you get either time (extend) or coins to use in buying weapons, shields, bombs, etc from stores you find on the way. You just have to knock on the door to enter these stores. The quest is hard, so you have to make Tom Tom stronger. Wonderboy In Monsterland, was one of the best coin-op conversion games of its time and one of the most famous through all generations of gaming.
The ST conversion, was greatly done, having graphics almost identical to the coin-op machines with quite cute characters, good sprite animation and screen scrolling, vivid colors. Controls are sometimes sluggish too. Sound is fine, with an amusing game tune, whilst sound FX are good as well. The Amiga version was ported from the ST, with minor differences in sound. Technically, the game is exactly the same in both 16bit computers.