Hedgehog Challenge

You control a small hedgehog on a series of narrow, rising platforms. The core action is constant movement; you run left and right with the arrow keys and jump with the spacebar to avoid falling off the bottom of the screen as the stage scrolls upward. Your main goal is to survive as long as possible, but the platforms themselves start to move faster, and gaps between them widen, forcing quicker decisions. The pacing begins deliberately but builds a steady, insistent pressure. It feels like a race against the screen's edge, a test of simple reflexes under a gradually tightening constraint.