一款有效利用触控屏幕设计出来的十分有趣的解谜游戏，玩家扮演的是拿火把搭配不同颜色药水，以散射光消灭怪物的海尔辛教授。游戏提供简单中等和困难三个挑战难度，还有 3 个大关卡包含 90 个小关卡的流程。

感谢 yingh07@weiphone 汉化

版本 1.1 中的新功能

NEW CAMPAIGN: The cold is relentless. The Frozen North awaits!
NEW VILLAIN: The Ice Queen has cast a spell that is slowly turning London to ice.
NEW PARTNER: Raffton has fallen sick! Who will take his place?
NEW MIRRORS: Bounce light and tonics around corners.
NEW CRYSTALS: Color the light and tease your brain.
NEW SURVIVAL: Two new survival arenas to prove your skill.
NEW CELEBRATION: Tea time!
ENDLESS PUZZLES: As always, every playthrough is unique. All puzzles are generated randomly for each game.
GAMECENTER SUPPORT: Leaderboards and Achievements are now posted to both Crystal and GameCenter.
ENTER THE COLD!: Select CAMPAIGN to access the new campaign.