Gecko codes are a popular way for players to improve their practice experience in Super Smash Bros. Melee. These codes allow players to activate various modifications in the game that are immensely valuable in training because they can be enabled for Slippi online play and in Unclepunch training mode.
If you need help importing these codes into Slippi's version of Dolphin, I wrote a guide for that here.
Contents
Turn Green When Actionable
Act as soon as possible after a move finishes.
$Optional: Turn Green When Actionable C20CC818 00000011 3CE08048 80E79D30 54E7443E 2C070208 40820018 80EDB61C 88E70000 891F000C 7C074000 40820058 48000049 7CA802A6 C0250000 D03F04BC C0250004 D03F04C4 38600000 907F04C0 907F04B8 907F04C8 907F04CC 907F04D0 907F04D4 38600001 889F0504 50643E30 989F0504 48000010 4E800021 437F0000 43340000 80010024 60000000 00000000 C208A478 00000011 3CE08048 80E79D30 54E7443E 2C070208 40820018 80EDB61C 88E70000 891F000C 7C074000 40820058 48000049 7CA802A6 C0250000 D03F04BC C0250004 D03F04C4 38600000 907F04C0 907F04B8 907F04C8 907F04CC 907F04D0 907F04D4 38600001 889F0504 50643E30 989F0504 48000010 4E800021 437F0000 43340000 8001002C 60000000 00000000
Turn Yellow During IASA Frames
"Interruptible As Soon As" frames
$Optional: Turn Yellow During IASA Frames C2071960 00000007 98032218 98030504 3C00437F 900304B8 900304BC 900304C4 38000000 900304C0 900304C8 900304CC 900304D0 900304D4 60000000 00000000
Turn Cyan when Fastfall is Available
Learn when you can fastfall.
$Optional: Turn Cyan when Fastfall is Available C207D554 00000009 88030504 2C000091 41A20038 3C00C200 900304BC 900304C0 900304C4 38000000 900304B8 900304C8 900304CC 900304D0 3C00C280 900304D4 38000091 98030504 C0230624 00000000
Z Jump
This lets you try out Z jump before you commit to a hardware mod or changing the settings on your Phob.
$Swap X/Z (Netplay Safe) [Altimor] C234E2AC 00000002 5000843E 5000B56A 500056F6 00000000 $Swap Y/Z (Netplay Safe) [Altimor] C234E2AC 00000002 5000843E 5000BD28 50004EF6 00000000
Flash Red on Unsuccessful L-Cancel
$Optional: Flash Red on Unsuccessful L-Cancel (v1.02) [Achilles,InternetExplorer] C208D690 00000003 88A5067F 2C050007 4180000C 39E000D4 99E30564 00000000 C20C0148 0000000C 387F0488 89FE0564 2C0F00D4 41820008 4800004C 39E00091 99FE0564 3DE0437F 91FE0518 3DE0C200 91FE0524 3DE00000 91FE051C 91FE0520 91FE0528 91FE052C 91FE0530 3DE0C280 91FE0534 3DE0800C 61EF0150 7DE903A6 4E800420 00000000
Turn White During Shield Stun
Learn the earliest you can act out of shield stun.
$Optional: Turn White During Shield Stun C206B80C 00000009 7F03C378 81C30070 2C0E00B5 40820034 3DC0C200 91C30518 91C3051C 91C30520 91C30524 39E00000 91E30528 91E3052C 91E30530 91E30534 39E00091 99E30564 8001007C 00000000
Partially Invisible Techs
Train your eyes to react to the specific "tells" of the tech animations instead of waiting to see what direction they're rolling. The character will become visible again when vulnerable.
This code was created by clownssbm on Discord.
$Optional: $Partially Invisible Techs [Clown] C2080A30 00000006 801F0010 280000C7 41800020 280000C9 41810018 A01F0894 280040A0 4180000C 280041A0 41800008 5460CFFF 00000000