PS2 emulation will be handled with the emulator PCSX2, set up guide found below. To play online with rollback netcode you will either need to set up PCSX2 Online or use the program Parsec. You can also play some games through the Play!.js browser emulator, however this emulator has way less compatability than PCSX2. If any games have different requirements they will be provided individually in their own tab.