Wonderful games that are universally shat upon:
Timeball/Blodia = Divine. 'Nuff said.
Rock On = This game is strangely addictive and enjoyable. It has never been seen as anything but a joke, especially by shoot-em-up fans, but I totally dig it. I'm not saying I love it. I'm saying it deserves some tenderness.
Chris' Adventure = You're gonna hate me, but I actually like this game, even though the platforming can be incredibly unforgiving. Maybe I'm just a sucker for Mayan/Aztec/Mesoamerican settings. Maybe I'm a masochist.
China Warrior = I totally enjoy this game, even though the boss fights are the weak links. First, your ears are treated to KICKASS music (the thumping bass sounds great, especially for chip tunes). Years ago, I made the argument that China Warrior was a rhythm game. And it is. There are only a few things to "memorize" (i.e. there are a few tricky situations where the flying kick is perfect). Otherwise, you simply have to have good reflexes and respond to the cues.
Unfortunately, the boss battles aren't that great... they should have been more satisfying.
Even though it's nearly universally despised, Hatris is one of my favorite puzzlers on the PCE.
Waaaaaaaait. Are you serious?