Wurm: Journey to the Center of the Earth, released in Japan as Vazolder: The Underground Battle Space (地底戦空バゾルダー, Chitei Sen Kū Bazorudā), is a multi-genre video game developed by Cyclone System and published by Asmik and SOFEL for the Nintendo Entertainment System in 1991.

Wurm has a variety of different styles of play, with side-scrolling travel stages in the VZR vehicles, overhead shooting levels, levels where the protagonist Moby leaves the vehicle to explore underground ruins, and first-person shooting levels with boss monsters. Boss monsters have a probability meter that has to be raised up to 100% before that enemy can be eliminated. More characters join the crew over the course of the game. Moby must leave her vehicle in certain sections of the game to fight the enemies in a side-scrolling fashion. Her set of combat skills include a kick, jump and the use of a firearm. Players lose the game if they run out of either fuel or energy in the life bar.