So Bad it's Good...

Tekken: The Motion Picture, possibly the most hilariously ineptly made animated movie of all time. The dubbed version is the stuff of legends.

Also the Dungeons and Dragons movie:

https://www.youtube.com/watch?v=28snhq40C8o
https://www.youtube.com/watch?v=BV3roWM0DSs

I rest my case.

Street Fighter the Movie? I watched it when I was a tiny little PuPu. I thought it was pretty good until I saw the real street fighters in the arcade. :(