Abadox: The Deadly Inner War

Abadox is a video game for the NES. In the game, you must ventures inside of an alien body in search of the recently swollowed Princess Maria. There are 12 levels in all, each one inside of the alien.

Plot
The game takes place in the year 5012. Suddenly, a strange creature is spotted in your galaxy. It is soon revealed that the enemy is Parasitis. The enemy then swallows your home planet. The World Alive Force launches an attack, though the enemy crushes it, and swallows a hospital, witht he princess on board. Now you must venture throught the monster and find the princess.