The Shape-Shifting Cube

You are a small cube locked inside a high-tech laboratory, and your only power is changing shape. Every form plays by its own physics: the SQUARE is heavy with great grip and is the only one that can trigger the pressure pads, the BALL is fast and springy and bounces off hard landings to clear the widest gaps, the TRIANGLE clings to walls, wall-jumps up narrow shafts and shatters cracked glass blocks, and the SLIME is flat and light enough to squeeze through grates, glide through the air and ride the fans all the way to the ceiling. Twelve hand-built rooms teach you one form at a time and then mix everything together: spike beds, spinning saw blades, blinking lasers, locked doors that only open when the square stands on the pad, trampolines, updraft vents and checkpoints. Collect every sample vial in a room to power up the exit portal, grab the energy cores for bonus points, and paint the walls with your color as you go. There are no lives to lose: a checkpoint puts you straight back on your feet, and every death simply costs 50 points, so the clock and your mistakes are what your score is made of. Scoring rewards speed and clean runs with a time bonus and a no-death bonus, plus best-score tracking and a local leaderboard. Keyboard on desktop, full touch controls on phones and tablets, no download needed.