Abadox

is a horizontally scrolling shooter for the Nintendo Entertainment System published in Japan in 1989 by Natsume and North America in 1990 by Milton Bradley Company. It is in the vein of Gradius and R-Type, taking place inside the intestinal tract of a giant alien organism. Abadox has a high difficulty, and it takes one hit from an enemy projectile to be killed and restart from a checkpoint passed before death.

==Plot== In the year 5012, the planet Abadox is eaten by a giant alien organism known as Parasitis. Having consumed Abadox, the alien takes the form of the planet and seeks to devour other planets. The galactic military launches an attack but is destroyed by Parasitis who goes on to devour the hospital ship carrying Princess Maria. Second Lieutenant Nazal, the only surviving fighter of the galactic fleet, attempts to enter Parasitis's body and rescue Maria before it is too late.