Gravity Jumper

Controls

The game pauses automatically if you switch tabs. Sound effects are generated in your browser and can be muted with the speaker button.

How to Play

Your runner moves forward on its own. A press doesn't jump; it reverses gravity.

1. Press Space, Enter or the Start Game button.
2. Press Space, ArrowUp or W, the jump button, or tap the game area to flip gravity and fall toward the ceiling. Press again to fall back to the floor.
3. You can flip only while standing on the floor or ceiling, so each flip has to finish before the next.
4. Be on the ceiling where the floor has a gap, and on the floor where the ceiling has one.
5. Stay on the side away from each pink block, and expect slower flips inside the purple striped LOW-G zones.

Game Objective

Travel as far as you can. The score counts distance only, so it rises steadily and faster as the run speeds up. The readout next to the score shows which way gravity is pulling, or LOW GRAVITY while you're inside a zone.

The run ends if you crash into a block or fall out of the corridor through a gap in the floor or ceiling.

Tips

1. A normal flip takes about 0.4 seconds to cross the corridor, while one inside a low-gravity zone takes about 0.6. Flip earlier in purple zones, especially since many of them have a block in the middle.
2. Don't flip while a block is right beside you. The crossing takes you through the block's space on the way to the other side.
3. You can still flip for a split second (about 0.08 seconds) after running off an edge, so a late press at the lip of a gap can save you. Don't make a habit of relying on it.
4. At top speed the corridor moves nearly twice as fast as at the start, so each flip covers almost twice the ground. Start flips earlier as the run goes on instead of timing them the same way throughout.
5. After a gap, the missing surface returns and the next section is solid on both sides, so you don't need to flip back immediately. Decide based on the next hazard.

Difficulty

Difficulty: Difficulty: Medium

Gravity Jumper is rated Medium. One button controls everything, but each flip has a travel time that changes inside low-gravity zones, and constant forward motion means you have to plan a flip before the hazard arrives. Speed climbs steadily for about 100 seconds until it's nearly double the starting pace. Over roughly the first 5,000 points the course also tightens: gaps grow from about 90–150 units to 130–220, blocks can get wider, and the safe stretches between hazards get shorter.