Any ps2 fans in here?

It’s a bit of a silly answer, but I have a huge soft spot for the college football games on the PS2. I think those and the Dragon Ball Budokai series are the only games I come back to regularly on the PS2. 

Despite owning a ps2 for like 5 years I've barely played anything on it...

My absolute favourite game on the system is Parappa The Rapper 2. I played that thing on repeat for literal months when I was younger.

Ape Escape 2 is great and definitely worth a look if you have PS Plus Premium!

Sonic Heroes and Sonic Riders are both great games despite Sonic Heroes being horrible on PS2 compared to GameCube, Xbox and PC

the first ever videogame console i played on was a PS2 slim. right now my favorite game on it is gran turismo 4. 

Hard to pick a single favorite, but one I've put a lot of hours into is The Bouncer. It was one of the PS2 launch titles and didn't do the best in terms of sales and reception, but it's still one of my favorites.

The namco collection (specifically the Rolling Thunder and dig dug games)