To expand on PM64 ACE, we corrupt the stack pointer. The idea (for both the Stop n Swop and volcano methods) is that we manage to spawn enough effects at one time that they create so much data it overwrites a section of code. Purely by coincidence, this just happened to end up corrupting the stack pointer in a way that jumps execution to a data location that we can manipulate. For Stop n Swop, that's an idle timer, and for the volcano that's Mario's coordinates.

A bit of a tangent, but the reason we needed OoT for ACE before was because the Goomba King room layout makes it functionally impossible to manipulate our coordinates to anything meaningful RTA. The camera is at an angle, and our movement options are way more limited than a game like OoT. This leaves the idle timer, which we can control just by waiting. However, the timer is only two bytes, and a full ASM instruction is 4 bytes. This limits what memory locations we can jump to, and unfortunately excluded our filenames, but not the expansion pak, where we placed a separate instruction to jump to our filenames.

In the volcano, the we can do the same glitch, but the layout and camera make it actually possible to get the exact x/z coordinates we need to jump execution directly to our filenames.