Earth has been overwhelmed with Star Spores from space, mutating its flora and fauna in ferocious ways! Courageous soldier Jesse Varlette has fought valiantly, except he’s ended up with an alien parasite on his body. He is, fundamentally, still human, and uses his newly mutated powers to fight back against the alien menace.
Chainstaff comes from Mommy’s Best Games, an indie American studio that’s specialized in 2D shoot-em-ups and run-and-guns since the XBLIG era, including titles like Weapon of Choice and Serious Sam DD. This is a culmination of everything they’ve done up until this point, with a distinct visual style and over-the-top gunplay that sets them apart from retro titles like Contra.