Trolls on Treasure Island is a casual, puzzle game in which players control a troll bouncing across the screen to collect jewels on the playfield. The core mechanic involves matching the troll's hair color to the jewels by bouncing on paint cans that change its color, enabling the collection of specific treasures. In this game, the setting is a series of rooms on Treasure Island where the player must retrieve all treasures without falling prey to enemies or running out of time, adding a layer of challenge and strategy. It stands out with its unique color-matching mechanic, engaging puzzle design, and the requirement to navigate through enemies and time constraints, providing an entertaining and strategic gameplay experience.