First one, don't even need a single second to guess :D I absolutely love Ratchet and Clank, I'm so happy you made a PS2 version of the quiz, thank you so much
You see, even if you grew up on ps2 games, you don't need to know them by the OST. That's perfectly fine, because we all experience games a little differently. Some perceive only the graphics, others the story, and some listen to the accompanying music while playing.
I heard the one for SMT 3 and perked up for a second thinking it was a SMT game since SMT battle themes have a similar opening, but I got it wrong since I didnt play SMT 3
Easy 6 - Not sure how I knew Kingdom Hearts, I've never played it but I somehow knew it was from there, haha. Also, cutting away Devils Never Cry at that point was criminal :P Medium 3 Hard 2 (I also guessed Persona on Shin Megami Tensei 3, and Kuon was my second guess after Fatal Frame, so maybe 4 instead of 2 if I get pity points? :D) I knew a lot of these games but just didn't know the songs :3 Again, thank you for this list :) Love the PS2