[PS2] Must Own PS2 Games, or how many middling JRPGs can you suggest?

Jak Trilogy - Action Platformer - One of the best series the PS2 has to offer. The first game is just freaking beautiful and smooth in the graphics and it's a large open world where you go around and search for things to help you go further. The second and third games have a world that's more GTA based and adds weapons into the gameplay, but the platforming is still there. Definitely a must buy for anyone who's a platforming fan.

Dragon Ball Z Budokai 3 - Action Fighting - Before it broke off into full scale 3D fighting with the Tenkaichi series, Budokai 3 combined the best elements of the first two Budokais and added much more. With over 60 characters to choose from, multiple paths you can take to end certain characters' story modes (and you have to in order to unlock certain characters), and the music is just kick ass. The only downside to this is you're probably only going to buy this game if you're a DBZ fan, but it's the best of the Budokai series.

Kingdom Hearts & Kingdom Hearts 2 - Action RPG - Agreed with Tankalex above, this series is just great. Running around and going back to famous Disney worlds (good or bad, you decide) in search of your friends is actually pretty fun. The battle system is pretty cool too, I've actually taken quite a liking to it. The battles also add more of a serious tone to some of these worlds, plus there's fan service to some of your favorite Final Fantasy characters in these games (7, 8, 10, and I think one guy from 6...I'm not sure if that's where Setzer came from). The story is deep and the music is just beautiful! Honestly, I think this RPG series got better treatment on the PS2 than Final Fantasy itself.

Metal Gear Solid: The Essential Collection and Metal Gear Solid 3: Subsistence - Action Adventure - If you've never bought any of the Metal Gear Solid games before, this is definitely a must buy. This compilation alone has the first three MGS games and it's only $30 for a new copy! All of the MGS games have interesting plots, incredible gameplay, and great music. Also, the version of MGS 2 that is included in here is the Director's Cut games, meaning MGS2: Substance (contains VR missions, Snake Tales, and a Snake Skateboarding mini game).

I'm actually surprised that they didn't include MGS3: Subsistence in this set, because that 2nd disc had a lot of content including the first two Metal Gear games that started it all from the MSX systems: Metal Gear and Metal Gear 2: Solid Snake. I'd recommend finding Subsistence separately because those two games alone are just classic.

Jam it back in, in the dark.