Hey guys, I was curious what the rules are as far as using a PS2 emulator goes, also which emulator's are allowed ect.

I would recommend PCSX2.

Over the last couple of years it's been the most stable and reliable PS2 emulator around, and it's always being updated.

The one I'm currently using is a Developers Build version 15.0 found here: https://pcsx2.net/download/development.html

but a stable version works too.

You also want to make sure to set the renderer to Direct3D11, it's what I found to be the most stable when running the game (hardware allows you to increase the native graphic setting/software won't)

although even if you find another emulator that works for you as long as you aren't speeding up the emulation of the game (like 110% normal speed) or using cheats you'll be fine. :)