Play Jigsaw's Test (super mario world hack) (demo) Online

Jigsaw's Test is a Super Nintendo Entertainment System (SNES) ROM hack based on Super Mario World, created by an independent developer. It exists as a demo, a modification that reworks the familiar Mario World engine into something far more demanding and deliberate, stripping away the forgiving platforming of the original for a stricter challenge.

You control Mario through a series of single-screen puzzle rooms, each one a self-contained test of precision and timing. The main objective is simply to reach the exit in each room, but the path is never straightforward. The signature mechanics involve navigating tight spaces filled with instant-death hazards like spikes and firebars, often requiring pixel-perfect jumps and careful manipulation of moving platforms. The pacing is slow and methodical, demanding you study each room's layout before making a move. It feels like solving a series of intricate, dangerous logic puzzles where one wrong input means starting over.