I remember getting this and playing the shit out of it when it first came out. I've still got my PSP and the many various games, including Crisis Core, on a shelf display. My PSVita never got quite as much use as my PSP until I eventually jailbroke that one too lol
Oh man, the first time I played Portal and a couple years later Portal 2, I beat them in a single playthrough each. Stayed up all night then most of the next day. Could not put the games down! Hilarious and beautifully musical! The story was actually pretty compelling especially all the history in 2 💀