I played Castlevania 2 the other day for the first time in many years. It took me 19 game days to beat it. I keep meaning to get back to it so I can get the good ending. I'm also playing Clash at Demon Head. Another I haven't played in years, and I haven't beat it either. I've managed to find two bosses so far.
I've also been playing Resident Evil 4 and 5 on my computer. 4 HD is rather not really worth it, as it's really not that great of an improvement, but I got it with German on it so at least there is that. RE5, though it says plays great with an i7, on an i5 with a slightly old yet decent graphics card it plays much better than either the 360 or PS3. And while I may have just hit a lucky streak, it seems to drop magnum ammo more frequently than both.
I think I might start playing the GBA Shinning Force and see how many times I can beat it until I can't beat it anymore.