jajos12/shift ? reverse-engineered prompt

Build me a playable 2D pixel art platformer called SHIFT where the main gimmick is switching between two parallel worlds, Lumina and Umbra. In one world some platforms exist and in the other they disappear, so the player has to swap dimensions to find paths, avoid enemies, and reach the exit. Please include a simple title screen, pause menu, game over screen, and victory screen, plus smooth movement like jumping, wall jumping, coyote time, and jump buffering. I want touch controls for mobile too, with on screen buttons and responsive scaling so it still feels good in landscape.

Make it feel polished with parallax backgrounds, basic enemy patrol behavior, sound effects, and music that changes when the player shifts worlds. Use procedural pixel art instead of external sprites if that fits the project. If you need to, look up current docs online for Phaser and Vite.