What single player games do you enjoy replaying?

[The_Liquid_Laser]

I've replayed quite a few games in just the past 2-3 years.  Off the top of my head:

Adventure (Atari 2600)
The Legend of Zelda (NES)
Zelda 2 (NES)
Mike Tyson's Punch Out (NES)
Castevania (NES)
Metroid (NES)
Final Fantasy (NES)
Super Castlevania IV (SNES)
Sonic the Hedgehog (Genesis)
Sonic the Hedgehog 2 (Genesis)
Golden Axe (Genesis) - I play this a ton
Final Fantasy Tactics (PS1)
Konami Arcade Classics (PS1) - Mostly Circus Charlie
Katamari Damacy (PS2) - This is the other game I play a ton
I "heart" Katamari (PS2)
D&D Tower of Doom (PS3 port of arcade game)
Astro Boy: The Omega Factor (GBA)
Final Fantasy Tactics Advance (GBA)
Final Fantasy Theatrhythm (3DS) - Used to play a lot, but out of the habit

These are games I like to play at nearby arcades:
Golden Axe
Anteater

Also I have a 60-in-1 board I wired up at home.  These are old arcade games I play a lot on that:
Pac-Man
Galaga
Donkey Kong
Donkey Kong Jr
Dig Dug
Mr Do
Centipede

Lastly, I am currently replaying Dark Souls on the Switch and Final Fantasy X on the PS2, and I'm really enjoying both.  I actually do replay a lot of my favorite games from the past quite a bit.  I'm always looking for new games and new experiences that broaden my horizon, but not very many high quality games like this come out every year.  If I really want to enjoy myself, I have a lot of old games that I can always go back and revisit.