Mechanics

Rotation

Tap any unused tray piece to rotate its shape clockwise. Rotation uses trimmed bounding boxes — empty padding around a shape is removed after each turn. Symmetric shapes may only have one or two unique orientations, but the game always checks all valid rotations when testing for game over.

Tray swap

Drag a piece and drop it onto another tray slot (not the board) to swap their positions. Swapping is useful when the left piece fits a spot better after reordering. Used pieces cannot be swapped.

Star gems

Star gems appear on empty grid cells as glowing ★ markers. They do not block placement — you can cover them with tiles. They only pay out when included in a row or column clear, granting +150 points each. After clears, the game spawns fresh stars on empty cells to keep the board lively.

Combo streaks

A streak increments every time you clear lines on consecutive placements. Missing a clear on any turn resets the streak. Higher streaks multiply line-clear score — see Scoring & combos.

Block shapes & colors

The game draws from 20 polyomino templates — monominoes through complex five-cell shapes — each tinted in one of eight gem colors. Color is cosmetic for placement rules; only position and shape matter for fitting on the grid.

Game over & continues

When no legal move remains, the run enters a game-over state. On supported portals:

• Continue: Watch a rewarded ad to restore the board to your last checkpoint, remove six random tiles for breathing room, and receive a fresh tray. Limited to two continues per run.
• Score bonus: A one-time +400 point reward may be offered via ad on the game-over screen.
• Tray refresh: Once per run, you may watch an ad to replace all three tray pieces without ending the game — useful when pieces almost fit but not quite.

Ad availability depends on the GameDistribution (or partner) portal hosting the build.

3D gem tiles

Tiles render with beveled lighting, specular highlights, and soft glow. Cleared lines trigger a brief rim flash on the board frame. These visuals are purely presentational — they do not change scoring or collision.