Spirit Boy is a free online puzzle platformer where you control a boy who can transform into a ghostly soul to survive deadly traps and reach otherwise impossible areas. The core mechanic is clever: when danger closes in, shift to ghost form to float through spikes, slip past hazards, and access hidden passages – then switch back to human form to hit the exit door and clear the level.

What makes Spirit Boy genuinely fun is the balance between its two states. Ghost form feels powerful until you realize you can't complete levels without returning to your body, so every transformation is a calculated risk. Levels stack up the pressure with tight spike corridors, tricky jumps, and puzzles that require you to think about when to ghost and when to stay solid. You only get three lives, so reckless play gets punished fast. The retro pixel art and tight 2D controls keep everything snappy and responsive.

This game is a great pick for fans of retro platform games, logic puzzles, and single-player arcade challenges. If you enjoy classic pixel platformers, brain-teasing trap games, or free HTML5 adventure games you can play instantly in your browser, Spirit Boy delivers sharp gameplay without any fuss. It suits players who like a real challenge without drawn-out tutorials – just jump in and figure it out.