The only accomplice you can trust is you, a few seconds ago.
Rules. Reach the diamond. Every move is one tick, and everything moves together. Press Loop and your run so far becomes a ghost that replays it from the start while you play again. A ghost that ends its run stays where it stopped, so it can keep a plate pressed forever.
A plate opens the door with the same letter while someone stands on it. A door with several plates opens only when all of them are pressed at once. Moves: arrows / WASD or swipe the board, space to wait. The par is the fewest ghosts that can possibly work, checked by a solver.