3-byte representation of the score.

Byte	Binary	Option
00	00000000	1UP Game + Keyboard
01	00000001	2UP Game + Keyboard
02	00000010	1UP Game + Kempston Joystick
03	00000011	2UP Game + Kempston Joystick
04	00000100	1UP Game + Cursor Joystick
05	00000101	2UP Game + Cursor Joystick

Either 00 or 01.

3-byte representation of the score.

3-byte representation of the score.

The currently active player.

Value	Player
00	1UP
01	2UP

Has the frame been updated? 00=No 01=Yes.

Current menu item colour attribute.

At the beginning of each player turn there is a delay to allow the player to be ready for play.

Value	Game Mode
80	1UP
FF	2UP

The larger delay for a 2UP game is useful for swapping players controls.