As soon as I lend my PS2 to a friend I immediately want to restart Persona 4 for the billionth time and continue with Okami. It's been months now and perhaps Persona 4 withdrawal symptoms have started to kick in...
Also League of Legends, not sure if it qualifies as old exactly but I tried it when it came out and couldn't stand it, went back to it about a month ago and it's really damn addicting. Even though the community can be goddamn awful.
I just skip between all the Champions who have interesting gameplay styles. Most recently Orianna. She is so powerful yet so difficult DX
Her ball is amazing, mini ward, epic pokes, shield for your allies, a speed buff/debuff that does damage and a fuck this button where your ball just punches everyone in range into the sky.
Pro tip: Command: Attack into Command: Shockwave wins you basically any teamfight if they're all clustered together. So when they all get the clever idea to all cram into that one bush for an ambush you scouting with Command: Attack just ruins their day!
Why facecheck bushes when you have The Ball?