When the show aired on TechTV, it got edited due to time constraints. Most noticable is having the ending theme song, "Chin ~Requiem~", play at the beginning of the show, thus making the ending theme become the opening theme song. The actual opening theme was just cut out altogether.
Although never specifically stated, it has been proven that Betterman takes place in the same universe as the anime series King of Braves GaoGaiGar, proven by several cameos of minor GaoGaiGar characters.
Japanese Title: "Yami"
Keita: This robo might not look so hot, but it sure is powerful.
Hinoki: It's not a robo. It's a neuronoid, the Kakuseijin No. 1.
The show first aired in America on TechTV's Anime Unleashed block.
This episode is the debut of the Betterman Nebula form.
In the English version, when Keita was running down the elevator shaft, he was jumping and saying "WAHOO, YEAH, HERE WE GO!". This resembles the Nintendo 64 game, Super Mario 64.