Flappy Cube

Flappy Cube takes the familiar one-tap survival loop and strips it down to timing. Every input lifts the cube, every gap asks for a different rhythm, and the whole run depends on staying calm once the pace starts to tighten.

It fits the portal well because the rule is instant, the score is clear, and the restart loop is fast. You can jump in for thirty seconds and still feel the pressure of chasing one cleaner run.

• Tap, click, or press space to flap upward.
• Stay between the pipes and avoid ground contact.
• Small corrections are safer than panicked jumps.
• As the run goes on, keep your rhythm instead of chasing the score.