Streets of Rage 2 or Chrono Trigger
Both of those were epic and I could not get enough of. I still play streets of rage 2 on my friend's ps3 since I got him to down load it lol.
Then Chrono Trigger the epic super Nintendo game of the century, I went through it like 8 times after completing it the 1st time. Since it has a plus after you complete it, it lets you keep your levels and stuff to go through it again.