GAYSUK is a common code for video games on the Game Genie.
- Mario's gravity is delayed when walking off an edge, but standing jumps are affected.
Another game to have this effect of delaying gravity, but as an integral part of the game toward the end, was The Legend Of Zelda: Ocarina Of Time, with its hover boots feature. Oddly enough, no Game Genie devices were developed for the Nintendo 64, which Ocarina of Time was on.
- Question marks still animate after being activated, coins don't disappear, etc.
Top 10 WEIRD Super Mario Bros. Game Genie Codes, proved the existance of this code.