CHALK HOP — Free Chalkboard Jumping Game with Tilt Controls

A small, original chalk-filled rabbit climbs an endless blackboard of five platform styles. Collect propeller hats, rocket packs and one-hit shields; powered flight ignores new pickups and passes through hazards, while normal hops need you to stomp or shoot monsters and avoid black holes. Desktop uses arrow keys and Space. Gently tilt your phone or tablet for responsive steering and tap any non-control area to shoot upward, with touch arrows as a sensor fallback. Your highest height stays on this device.

Platforms & play modes

desktop, tablet, mobile. Single-player survival. No human multiplayer.

Controls

The rabbit jumps automatically. Move left/right with Arrow Left/Right or A/D on desktop. Phones and tablets primarily use gentle left/right device tilt from orientation/gyroscope and gravity sensors, with screen rotation compensation, a 1.5-degree dead zone and responsive smoothing; about 12 degrees from the calibrated grip reaches full steering. Motion permission is requested only from Start or Enable tilt; HTTPS is required. Your first valid reading centers your current grip, and the center button recalibrates it. Denied permission, absent sensors or stale data are clearly reported; on-screen left/right arrows remain available as fallback. No motion data leaves the device. Both orientations work, with portrait preferred on phones; rotating pauses the run and clears input, then resume with fresh calibration. Platforms include steady, moving, crumbling, spring-boosting and fading types. Fading platforms are optional; the generated main route remains reachable. Wrap around left/right edges. The camera follows new height upward; falling below the screen ends the run. Endless ascent has no final stage. Height uses eight game units per meter and the highest run height is saved locally under chalk-hop-best-height; refresh preserves it. Esc/P pauses; M or Sound enables audio explicitly, with every new load muted. No online or local multiplayer and no editor. Controls suppress long-press menus, selection, scrolling, dragging and gesture zoom. All character art and sound are original, not copied from Doodle Jump. Collect a propeller hat for 2.8 seconds of lift, a rocket pack for 1.9 seconds of faster flight, or a shield for one monster collision within 12 seconds. Rocket and propeller auto-ascent passes through monsters and black holes without collision, defeat credit or shield use, from pickup until the flight timer expires; normal collision resumes immediately after expiry. Stomp monsters from above or fire chalk stars upward using Space or by tapping/clicking any non-control screen area; the 0.24-second cooldown prevents unbounded shots. Sound, pause, calibration, movement, links and information controls never fire shots. Outside powered flight, black holes defeat you even with a normal shield. Enemies and black holes appear gradually in optional side lanes. Every 1000 meters shows a brief non-blocking milestone. Horizontal movement is faster and responsive, with a shared 600 game-unit/second maximum for tilt, keyboard and touch arrows. During rocket or propeller auto-ascent, all new pickups including shields are ignored and remain uncollected: flight cannot be refreshed or replaced and no pickup sound is triggered. Pickup resumes immediately when auto-ascent expires. Outside powered flight, diagonal and wrap-aware continuous contact detection supports normal pickups. Rocket, propeller, shield and spring have distinct original sound cues. The Sound button changes color and icon when enabled; muting immediately stops pending cues. Every reload starts silent.

Free to play. No downloads or sign-up. Sound starts off; enable it manually.