Here you go:
No Tires Spin [James0x57]:
040852AC 60000000
04085320 60000000
0408517C 60000000
040851F8 60000000
Very Few Collisions On/Off (R/L+D-pad Down) [James0x57]:
2859DC14 00000024
040F8718 60000000
040F8724 60000000
040F872C 60000000
E0000000 80008000
2859DC14 00000044
040F8718 D01F0024
040F8724 D01F0028
040F872C D01F002C
E0000000 80008000
Player 1 Infinite Health [James0x57]:
0431EA80 40000000
Player 2 Infinite Health [James0x57]:
04321730 40000000
Player 3 Infinite Health [James0x57]:
043243E0 40000000
Player 4 Infinite Health [James0x57]:
04327090 40000000
Player 1 Infinite Ammo [James0x57]:
0834C0E0 00000FFF
20120001 00000000
Player 2 Infinite Ammo [James0x57]:
0834D940 00000FFF
20120001 00000000
Player 3 Infinite Ammo [James0x57]:
0834F1A0 00000FFF
20120001 00000000
Player 4 Infinite Ammo [James0x57]:
08350A00 00000FFF
20120001 00000000
Player 1 Infinite Turbo [James0x57]:
0431EB28 41200000
Player 2 Infinite Turbo [James0x57]:
043217D8 41200000
Player 3 Infinite Turbo [James0x57]:
04324488 41200000
Player 4 Infinite Turbo [James0x57]:
04327138 41200000
Player 1 Joker [James0x57]:
8059DC14
Player 2 Joker [James0x57]:
8059DC20
Player 3 Joker [James0x57]:
8059DC2C
Player 4 Joker [James0x57]:
8059DC38
Player 1 Primary Weapons Modifier [James0x57]:
0434C0D0 XXXXXXXX
0434C0D4 XXXXXXXX
0434C0D8 XXXXXXXX
Player 1 Secondary Weapon Modifier [James0x57]:
0434C0DC XXXXXXXX
Player 2 Primary Weapons Modifier [James0x57]:
0434D930 XXXXXXXX
0434D934 XXXXXXXX
0434D938 XXXXXXXX
Player 2 Secondary Weapon Modifier [James0x57]:
0434D93C XXXXXXXX
Player 3 Primary Weapons Modifier [James0x57]:
0434F190 XXXXXXXX
0434F194 XXXXXXXX
0434F198 XXXXXXXX
Player 3 Secondary Weapon Modifier [James0x57]:
0434F19C XXXXXXXX
Player 4 Primary Weapons Modifier [James0x57]:
043509F0 XXXXXXXX
043509F4 XXXXXXXX
043509F8 XXXXXXXX
Player 4 Secondary Weapon Modifier [James0x57]:
043509FC XXXXXXXX
Selected Car in Car Garage [James0x57]:
043BE584 000000XX
Player 1 Car Modifier [James0x57]:
044E8030 000000XX
Player 2 Car Modifier [James0x57]:
044E8048 000000XX
Player 3 Car Modifier [James0x57]:
044E8060 000000XX
Player 4 Car Modifier [James0x57]:
044E8078 000000XX
Multiplayer Level Modifier Lava Falls (Says Amusement Park)[James0x57]:
044E802C 00000000
Multiplayer Level Modifier Blister Canyon [James0x57]:
044E802C 0000000C
Multiplayer Level Modifier Paradice City [James0x57]:
044E802C 0000000B
Normal Weather (A+D-pad Down)[James0x57]:
2859DC14 00000104
04586E88 00000001
04586E48 32000000
E2000001 80008000
Lightning & Thunder Weather (B+D-pad Up)[James0x57]:
2859DC14 00000208
04586E88 0000000E
04586E48 32000000
E2000001 80008000
Tornado Weather (B+D-pad Down)[James0x57]:
2859DC14 00000204
04586E88 00000011
04586E48 32000000
E2000001 80008000
Thunder Storm Weather (A+D-pad Up)[James0x57]:
2859DC14 00000108
04586E88 00000005
04586E48 32000000
E2000001 80008000
Cycle Weather Events (A+B)[James0x57]:
2859DC14 00000300
04586E48 32000000
E2000001 80008000
Happy cheating! (again, lol)