Arrows / WASD move · Up jump / climb ·
Down lie down / descend ·
Z / J attack · P / Space pause
Select your extracted game-assets.json. It stays in your browser, never uploaded.
Choose a local audio file to loop while playing. It stays in your browser, never uploaded.
Music pauses with the game. Sound mutes everything; Music mutes only the track.
Room selection resets and pauses a practice run.
Graphics switches Bruce, Ninja, Yamo and all 20 rooms between original graphics and
experimental shaded pixel art, even while playing or paused. It never resets the game.
Courtyards, caves, stone chambers, the tower and final vault have their own shaded palettes.
Layouts, trap behavior, warning colors, animation timing and collision masks stay original.
Flexible nets gently sway and react to climbing in Updated mode, without changing their
collision or climb speed. This extra motion respects your system's reduced-motion setting.
Bruce stretches after five seconds standing idle in Updated mode; movement or action
input cancels it. Reduced motion disables this extra animation too.
The selection lasts until you reload this page.
Acid fountains: Bruce, Ninja or Yamo can arm a pad by touching it.
A green pad warns of the eruption; move clear before it fires.
A native remake with original room scripts, opponents, traps and actor timing.
Sound effects use extracted SID register sequences; background music uses a local recording.
Native collision assistance and SID rendering are not cycle-exact C64 emulation.