Bugs the crowd found

In ground.js:82, releaseMount teleports the top fighter to y=0.82 but does not clear vertical velocity. The fighter's rigid body retains upward momentum from the mount pose, and player.js:157 applies jump velocity (6.0) because grounded check at line 153 passes (y<0.88 and low vertical velocity). The BLOCK state (player.js:135) prevents horizontal movement but not vertical, so the fighter rises to y>3 while stuck in BLOCK.

After escaping a mount, the player character shoots upward into the air while blocking, unable to attack or move horizontally until landing 3+ seconds later.

ground.js
- if(separate){m.top.rigidBody?.setTranslation({x:Math.max(-9.8,Math.min(9.8,base.x+aim.x*1.1)),y:.82,z:Math.max(-1.35,Math.min(1.35,base.z+aim.z*1.1))},true)}
+ if(separate){m.top.rigidBody?.setTranslation({x:Math.max(-9.8,Math.min(9.8,base.x+aim.x*1.1)),y:.82,z:Math.max(-1.35,Math.min(1.35,base.z+aim.z*1.1))},true);m.top.rigidBody?.setLinvel({x:0,y:0,z:0},true)}

ground.js:82 releases the top fighter with a teleport that adds aim offset to the bottom's position, but the bottom is already moving away during GETUP. The aim vector is stale and the teleport can place the top far outside the arena, after which gravity is re-enabled and the fighter falls forever.

The player's character flies out of bounds and keeps rising, soft-locking the round.

ground.js
- if(separate){m.top.rigidBody?.setTranslation({x:Math.max(-9.8,Math.min(9.8,base.x+aim.x*1.1)),y:.82,z:Math.max(-1.35,Math.min(1.35,base.z+aim.z*1.1))},true)}
+ if(separate){const tx=Math.max(-9.8,Math.min(9.8,base.x+aim.x*1.1)),tz=Math.max(-1.35,Math.min(1.35,base.z+aim.z*1.1));m.top.rigidBody?.setTranslation({x:tx,y:.82,z:tz},true);m.top.rigidBody?.setLinvel({x:0,y:0,z:0},true)}

props.js:303 calls prop.rigidBody.setTranslation without checking if rigidBody exists. The prop was already broken (debris cleanup removed its rigidBody at line 328) but the CPU still tried to throw it at 10.85s.

Game crashes with 'unreachable in throwProp' during a prop throw after the prop was shattered.

props.js
-   if (prop.rigidBody) {
    prop.rigidBody.setTranslation({ x: throwX, y: throwY, z: throwZ }, true);
    prop.rigidBody.setLinvel({ x: dir.x*Math.abs(velX), y: velY, z: dir.z*Math.abs(velX) }, true);
    prop.rigidBody.setAngvel({ x: 0, y: 0, z: -fighter.facing * 12 }, true);
  }
+   if (prop.rigidBody && !prop.isBroken) {
    prop.rigidBody.setTranslation({ x: throwX, y: throwY, z: throwZ }, true);
    prop.rigidBody.setLinvel({ x: dir.x*Math.abs(velX), y: velY, z: dir.z*Math.abs(velX) }, true);
    prop.rigidBody.setAngvel({ x: 0, y: 0, z: -fighter.facing * 12 }, true);
  }

In ground.js line 40, the FALL→DOWNED transition requires `pos(f).y < 1.08`, but the knockdown was created with `landed=false` (line 27) so `g.elapsed` starts at 0 instead of `GROUND_RULES.fallTime`. The fighter's y stays at ~1.39 (above 1.08) because pronePose is never called with t=1, so the condition never passes and the state remains KNOCKDOWN/ground:FALL indefinitely.

The knocked-down fighter floats at chest height forever in the FALL animation, unable to get up or be mounted, soft-locking the round.

ground.js
- if(g.elapsed>=GROUND_RULES.fallTime && pos(f).y<1.08){g.phase='DOWNED';g.elapsed=0;f.state='DOWNED';stop(f);emit(f,'slam',{defender:f})}
+ if(g.elapsed>=GROUND_RULES.fallTime){g.phase='DOWNED';g.elapsed=0;f.state='DOWNED';stop(f);emit(f,'slam',{defender:f})}

Ultra's patch fixed this seed but is not shipped (it removes a height guard entirely). The shipped game uses a narrower hand fix, rules.knockdownOnPropFix, which also replays clean.