GM4E01
Mario Kart Double Dash 

Everything Unlocked
023BC1C0 0003FFFF

Stars Last Forever
042B0540 4BD53700

Extra Speed
043D45A0 46C80000
042B17A8 C3E20000

Press Z to Jump
283A4D6C FFEF0010
48000000 803CC118
DE000000 80008180
1200033C 00004300
E2000002 80008000

D-Pad Up Freezes Timer
283A4D6C 00000008
04189348 60000000
E2000001 80008000

D-Pad Down Unfreezes Timer
283A4D6C 00000004
04189348 4BFFD9E9
E2000001 80008000

Other Karts Can't Move
04247504 60000000

Huge Karts
043D45A4 3FC00000
042D3668 C0220004

Tiny Karts
043D45A4 3F000000
042D3668 C0220004

Max Race Points
043B11CC 000003E7

Press D-Pad Left For Star
042B0540 4BD53700
283A4D6C 00000001
042AF120 48000208
042AF334 60000000
042C7A00 38000000
E0000000 80008000
2A3A4D6C 00000001
042AF120 40820208
042AF334 41820010
042C7A00 80040008
E0000000 80008000

Log Bridges Dont Sway
041EAC2C 4E800020

041F35D4 4E800020

Turn off Course Hazards
041F4DA4 4E800020

All Races: 1 Lap
04187BAC 38000001

Unrestricted Kart Selection
04163B30 7C673214
04163B34 2C030015
04163B38 41820010
04163B3C 2C030000
04163B40 41800010
04163B44 48000014
04163B48 38600000
04163B4C 4800000C
04163B50 38600014
04163B54 48000004
04163B58 4E800020

Disable Course Collision (Hold D-Down)
043CE824 BF800000
283A4D6C FFFB0004
043CE824 420001CE
E2000001 80008000

Infinite Mushrooms
042BCC5C 480000EC

Invisible Karts
041908B4 4E800020

Double Mushroom Boosts
042AD3EC 380000A0

Purely Random Items
0420CF28 38800013
0420CF30 2C030010
0420CF34 40820008
0420CF38 38630001
0420CF3C 4800009C

Item Always Green Shell
0420CBC4 38600000

Item Always Special Green Shell
0420CBC4 38600001

Item Always Red Shell
0420CBC4 38600002

Item Always Banana
0420CBC4 38600003

Item Always Special Banana
0420CBC4 38600004

Item Always Mushroom
0420CBC4 38600005

Item Always Star
0420CBC4 38600006

Item Always Wan Wan
0420CBC4 38600007

Item Always Bomb
0420CBC4 38600008

Item Always Bros Special
0420CBC4 38600009

Item Always Lightning
0420CBC4 3860000A

Item Always Yoshi Egg
0420CBC4 3860000B

Item Always Golden Mushroom
0420CBC4 3860000C

Item Always Homing Shell
0420CBC4 3860000D

Item Always Heart
0420CBC4 3860000E

Item Always Fake Prezzie
0420CBC4 3860000F

Item Always Special Shells
0420CBC4 38600011

Item Always 3 Mushrooms
0420CBC4 38600012

Goraud Shading
040A9714 4E800020

Reduced Nintendo Blur
022B3382 000000E8

Increased Nintendo Blur
022B3382 000000CC