Riftrunner Clones Cut the Rope in LMArena

Asked riftrunner to build a Cut the Rope-like mini-game inside LMArena. It delivered a clean physics loop, scoring, and UI hooks without heavy refactoring.

Gameplay clip: rope cutting, candy fall, star pickup, and goal detection working end-to-end.

What riftrunner built

• Physics loop: rope segments + gravity with stable collision checks.


• Scoring model: star pickups tracked separately from goal completion.


• UI hooks: restart and level reset baked in for quick iteration.

Why it matters

• Shows riftrunner (Gemini 3) can ship playable loops fast.


• Code arrives organized for extension—levels, assets, and effects slot in easily.


• Good for prototyping interactive demos without a full engine stack.

Prompting tips

• Define mechanics first: rope cut, gravity, goals, and collectibles.


• Ask for event hooks to extend later (sound, particles, level data).


• Keep assets abstract; focus on physics correctness before polish.

Bottom line

Riftrunner on LMArena handled a casual game clone cleanly. For teams needing fast prototypes, this response shows why Gemini 3 is a strong coding copilot.