How can you play PS3 games on ps2?

Answer 1

you can play ps3 games on ps2 just you need a ps2 any controller and a ps3 game then take the disc on your ps2 then it says disc read error then you press

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Answer 2

you insert the PS2 game into the PS3 drive and go to game under the XMB and select the name of the game or let it autoload if your patient and t loads fast as well