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Play Chuck Rock (US edition) Online
Chuck Rock
Play Chuck Rock online and rescue Ophelia across five prehistoric worlds. Belly-butt or jump-kick enemies, lift and throw boulders, use rocks as steps, swim carefully, and defeat each dinosaur boss.
Browser play

Sega Genesis / Mega Drive — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| A / B / C | S / X / Z |
| X / Y / Z | Q / A / E |
| START / MODE | Enter / V |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Chuck Rock
Quick start
Move through each scene looking for rocks before charging into enemies. Press Down+B beside a rock to lift it, carry it to block a hazard or create a step, then press B to throw it at a dinosaur; heavier rocks slow Chuck and reduce his jump. Without a rock, B performs the Belly-Butt, while C then B gives a safer jumping kick. Underwater, steer in all four directions and watch Chuck’s face: surface for air before it turns blue and health begins falling. Five levels contain several scenes and a boss, so conserve health pickups for later encounters.
Controls
D-pad Left/Right: walk; Down: duck; underwater, move in all four directions. B: Belly-Butt, or throw a carried rock. Down+B beside a rock: pick it up. C: jump. C then B: jumping kick. Start: pause/resume. Rocks can defeat enemies or serve as steps, but carrying one reduces speed and jump ability. Surface regularly while swimming to restore breath.
Chuck Rock Game manuals
Cheats
No cheats have been added for this edition.
Player verification and sources
Browser play was reviewed before this edition was published in the catalogue. The date below is the catalogue publication date, not the game’s original release date.
- Browser test and catalogue publication date
- Browsers and devices
- PC: Chrome, Edge and Firefox. Mobile: Chrome on Android and Safari on iPhone and iPad.
- Player engine and core
- EmulatorJS 4.3.0-pre · segaMD
- Tested by
- rwEmulator
Sources and editorial basis
rwEmulator reviews edition metadata, release information, game manuals and first-hand browser-play notes. Available manuals are linked below; the editorial policy explains how facts are checked and corrections are handled.