!!!Collision Registers Player to Player Collisions [P0PL] [P1PL] [P2PL] [P3PL] Missile to Player Collisions [M0PL] [M1PL] [M2PL] [M3PL] Player to Playfield Collisions [P0PF] [P1PF] [P2PF] [P3PF] Missile to Plafield Collisions [M0PF|HPOSP0] [M1PF|HPOSP1] [M2PF|HPOSP2] [M3PF|HPOSP3] Clear all Collision register [HITCLR]