Same seed and rules for everyone, no adaptive difficulty: 5 stages, 3 lives, 15 stars. Every run is replayed and checked by the server, and so are your main-game stages, for the Furthest Stage board.
Create a code and share it. Everyone with the code plays the same levels.
Your main-game stages are sent to our server and replayed there. Only stages it has replayed count, and not Relaxed mode.
Two players on one screen. You share the lives, the score and the stars.
Cosmetic only: unlocks never change the physics.