There's really not a whole lot I can say about this anime. At least not what hasn't been said about it already. The story starts off pretty standard sci-fi stuff with a rag tag space ship crew crash landing on an alien planet and banding together for survival before turning into what I can only describe as a messy hodge podge of ideas with psychic humanoids, gorilla like super soldiers and military dictators vying for dominance while a small band of rebel soldiers seek to take down said military dictators. Oh, and there's something about a robot super weapon as well. At least, that's what Igot from it.
The characters aren't exactly any better either. The film has a large cast of characters but they're all just bland and uninteresting. While the animation is... passable at best.
As for the English dub, it's pretty much Central Park Media at it's worst with terrible acting and some laughably bad dialogue.

Hyper-Psychic Geo Garaga is a forgotten anime that is honestly best left forgotten. It's a dull, boring hour and a half long movie that pretty much tries to throw every idea at the wall and sees what sticks resulting in one great big boring mess that is just an absolute chore to sit through.