Worst game from your childhood that you enjoyed

Perspective changes over time, and I was looking at my old gameboy, NES, and SNES collection, and damn there was some games that were just god awful that I loved and invested a lot of time into as a kid... just didn't know any better. What are some of yours?

Here's a couple of mine:

Cool Spot (Gameboy):

You actually play as the 7-up mascot from back in the day. An awful sidescrolling platformer that I beat probably close to 50 times.

LINK

Primal Rage (Gameboy):

This game was decent on other platforms, but it sure as hell sucked out loud on gameboy. That didn't stop me from playing it for weeks at a time due to my dinosaur obsession.

LINK

Tazmania (SNES):

I remember this being the only game I played for a month straight trying to beat it and I finally did. Looking back, the concept of the game was pretty interesting, run down the roads and try to eat all the birds, but I doubt more than 1,000 people in the world even played this thing.

LINK

It's actually pretty crazy pulling up videos of all these old games I haven't touched in years... you hear the songs from the games and instantly recognize them.