Tenchu: Wrath of Heaven was the shit growing up. I didn’t have a PS2 myself but would regularly be over at a friend’s house to play. I remember taking turns in the campaign and unlocking the secret level/secret character. Even as years went by and his PS2 got replaced by a PS3 we kept coming back to Tenchu, playing late night multiplayer sessions or doing co-op and trying to set up the various two-player combo stealth kills. Such good times.

Sly Cooper Jak and Dexter Ratchet and Clank Suikoden III and IV God of War Tony Hawk

I remember renting God of War and my little brother wanting to watch me play. Then scrambling to turn the TV off as the opening cut scene played. Had to explain to my parents why he couldn’t watch me play.