Anyone Suggest Old but awesomely good games?

As the title says... well not really Old old like games that are worth going back to even if you have played also or games that are just simply addicting XD i just need some time killer until i can save up for Kid Icarus, and wait for KH 3D

Chrono Trigger.

I remember betrayal at krondor being pretty awesome at the time.

At the top of my headNES
Metal Storm
Ninja Gaiden series (lolgoodluckfinishingthem)
Castlevania series (Yes, even II is decent enough if you give it a chance)
Megaman 1-3 (Screw the rest)
Zelda 1 and 2
Bionic Commando
Batman (The first game, not Returns)
etc. (Hell, a third of the entire NES library is amazing)SNES
LoZ: Link to the Past (GOAT game for the SNES)
Chrono Trigger
FFII and III (IV and VI, for you weaboo japanese guys)
Megaman X
Wild Guns
B.O.B.
Super Castlevania IV
Mickey Mania
Super Metroid
Legend of Mana
Super Mario RPG
etc (Same with NES, lots of fun games for the SNES)

Thanks for the post! :D I got my Kid Icarus today (and its pretty rad) but i'llstill try some of those games, I keep forgetting to try Chrono Trigger