I find compatibility list of incompatible psx games with ps2
all psx games is not working with ps2
or yes
I find these games

These PlayStation games are incompatible with all models of PlayStation 2
Arcade Party Pak
Arcade's Greatest Hits/Atari 2
Croc: Legend of the Gobbos
Fighter Maker
Final Fantasy Anthology
Judge Dredd
Monkey Hero
Mortal Kombat Trilogy
Tomba!

working this games on ps2 with modchip matrix infinity 1.99
or not
thank you for answer