Parasitis has swallowed the planet Abadox, and Princess Maria. Your task is to make your way through Parasitis' body, save Princess Maria, and keep the rest of the universe from being consumed.
It's clear from looking that this is another shooter, and it's clear to shooter fans that this one's influenced by Konami's Life Force, what with its "organic" theme. The stages even alternate between horizontal and vertical perspectives.
Many people have complained about Abadox's difficulty. I'm reluctant to agree it's as hard as they say, but it can be frustrating. Like some other shooters, one mistake can cost you all your power-ups, and it's a chore to get them back. At that point, you might as well start over. (The game's not that long.)
Most of us can agree, however, that Abadox has a great soundtrack. It was provided by Kiyohiro Sada, who once worked for Konami. The game's director was Atsushi Okazaki, who apparently also had a stint at Konami. Neither appear to have been involved with Life Force.
The game was produced by manga artist Go Nagai's Dynamic Planning, but God only knows what that means.
As far as I can tell, the programming and graphics were done by I.T.L. The only graphic artist credited is Hidenobu Takahashi. It is unconfirmed whether this is the same Hidenobu Takahashi who directed Grandia.
Credit to the video's creator