Investigating some things about the GameCube title Gotcha Force.
When you knock a CPU down in Versus Mode, they get a second of invincibility on wakeup. However in Challenge and Story Mode when you knock a CPU down, they have no invincibility on wakeup. This means when you knock them down in Challenge and Story Mode you can get okizeme on them, making the game arguably much more interesting.
It would be nice to have that okizeme for VS Mode. The game would reset to neutral every punish.
The invincibility counter gets set to the float 60.0 at instruction 0x8005d4b0. This is set using a static constant in memory at 0x80437448.
Here is the call stack at this point:
It also apparently gets set at the instruction 0x8005c7d8.
It counts down at the instruction 0x80055c00.
The Gecko Code is as simple as setting the static constant in memory from 60.0 to 0.
04437448 00000000
04440aa8 00000000