| R/W | ADR | HEXADR | NAME | DESCRIPTION | DEFAULT | SHADOW | OS |
|---|---|---|---|---|---|---|---|
| W | 53266 | $D012 | COLPM0 | Color of Player and Missile 0 | 0 | PCOLR0 | all |
| R | 53266 | $D012 | TRIG2 | Trigger Joystick 2 | n/a | STRIG2 | all |
Missiles have the same color as corresponding Players (e.g. P0=M0, P1=M1, ...) except when joined together as 5th player by setting Bit 4 of PRIOR/GPRIOR. Then they have the color of register 3 COLOR3/COLPF3.
TRIG2: only on 400 and 800 machines, else a copy of STRIG0. 0 when trigger pressed, 1 when trigger released
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