Mario Kart 64

rating: --- Always Last Place [North America]

81164390 FFFF - P1 Always Last Place
81164392 FFFF

81164394 FFFF - P2 Always Last Place
81164396 FFFF

81164398 FFFF - P3 Always Last Place
8116439A FFFF

8116439C FFFF - P4 Always Last Place
8116439E FFFF

rating: --- Always The Bomb [North America]

8118D8C0 FFFF - P1 Always The Bomb
8118D8C2 FFFF - P2 Always The Bomb
8118D8C4 FFFF - P3 Always The Bomb
8118D8C6 FFFF - P4 Always The Bomb

rating: --- Character Modifier [North America]

8018EDE4 00xx - P1 Character Modifier
8018EDE5 00xx - P2 Character Modifier
8018EDE6 00xx - P3 Character Modifier
8018EDE7 00xx - P4 Character Modifier

Replace xx with:

01 - Mario
02 - Luigi
03 - Peach
04 - Toad
05 - Yoshi
06 - D.K.
07 - Wario
08 - Bowser

rating: --- Infinite Balloons [North America]

8118D8C0 0002 - P1 Infinite Balloons
8118D8C2 0002 - P2 Infinite Balloons
8118D8C4 0002 - P3 Infinite Balloons
8118D8C6 0002 - P4 Infinite Balloons

rating: --- Instant Win [North America]

81164390 0000 - P1 Instant Win
81164392 0003

81164394 0000 - P2 Instant Win
81164396 0003

81164398 0000 - P3 Instant Win
8116439A 0003

8116439C 0000 - P4 Instant Win
8116439E 0003

rating: --- No laps to race [North America]

81164390 0000 - No laps to race P1
81164392 0002

81164394 0000 - No laps to race P2
81164396 0002

81164398 0000 - No laps to race P3
8116439A 0002

8116439C 0000 - No laps to race P4
8116439E 0002

rating: 5.00/5.00 Player 1 & 2 Can't Use Weapons [North America]

80165F5D 01B2 - Player 1 Can't Use Weapons
80165F8A 01B2

8016603D 01B2 - Player 2 Can't Use Weapons
8016606A 01B2

rating: --- Player 1 Instantly Gets First Place [North America]

81164390 0000 - Player 1 Instantly Gets First Place
81164393 0003
81164406 0006
81164409 0009