Byte Value	Binary	Option
0	00000000	1 Player Game
1	00000001	2 Player Game
2	00000010	Kempston Joystick
4	00000100	Cursor Joystick
6	00000110	Interface II Joystick

Has the frame been updated?

Value	Updated?
0	Not updated
255	Updated

3-byte representation of the score.

3-byte representation of the score.

Which player is currently active.

Value	Player
0	1UP
255	2UP

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

Value	Game Mode
128	1UP
255	2UP

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

Counter for game selection screen, which tells the routine when to flip to display the Hall Of Fame.

Used when calculating the players position in the high score table.

Each high score slot uses 3-bytes for the score with the players initials.

Most other Ultimate games only hold the high score.