some you can some you can't
Chat with our AI personalities
Yes if you have a Ps2 which can play both or, if you have a Ps1 you can only play the Ps1 game
With a emulator for the PS1
In order to play PS1 games on a PS2 you need to have a PS1 memory card in your PS2, so you can save your progress. Otherwise they don't work.
NO ps2 games don't work in Ps1 only Ps1 games works on Ps2
Yes.