I feel the Pokemon series spiked at G/S/C IMO, but the recent games are still good. An old IGN article remarked on the MissingNo. glitch, stating players were willing to sacrifice the stability of their game simply to level up their pokemon, stating the game's popularity.
Silver was the first, and only game, I had on my GBC for a looooong time. Great memories there . The SoulSilver remake should be good.
sonic? gta?
Tekken/Mortal Kombat/Street Fighter and Maybe Zelda.