That's easy! Masou Kishin Cybuster.
It's slightly based on the original characters created for the Super Robot Wars series, but besides the names and some designs, the anime doesn't even try to adapt anything from the Masou Kishin game, instead it creates a new story... That is absolute garbage in every single possible way.
The list of everything wrong with this anime:
- Bad and stupid characters (except Mr. Ando, Sayuri and Mr. Kamijo, they are good).
- Awful animation.
- Terrible story.
- Bad fights.
- Unmemorable soundtrack (only the first opening and the second ending are good).
- Annoying villains (Shuu, Saphine and Dallas are NOT fun to watch, at all).
- The anime drags a lot, it has 26 episodes but it feels like it lasts for 40.
Only managed to finish this absolute dumpster fire because I was watching with a friend of mine and I wanted to make a review about it, but Jesus Christ, the amount of times the characters did something stupid was through the roof in this show.
If you are a fan of the Original Generation, this anime will be terrible. If you don't know the OG and don't care, this anime will STILL be terrible. No one wins with Cybuster, it's a bad time from beginning to end.
Basically, watch the real SRW OG anime: Divine Wars and The Inspector. They are great.