This bundle includes the following:

• "Captain Chunky" the cute companion. He follows you in game!.
• The complete Wildcat Gun Machine soundtrack.
• Two exclusive weapon skins.

About the base game:

Wildcat Gun Machine is an explosion roller coaster ride! Enter a bullet hell dungeon crawler where you take on hordes of disgusting flesh beasts with a wide variety of guns, giant mech robots, and cute kittens. Explore sprawling maze-like dungeons and liberate giant mech robots from demonic elder gods. Enemy encounters are challenging and specifically designed - not randomized - to provide difficult combat puzzles.