Paladin drew multiple partial renditions of a game asset, then selected one for finalization.[13] Although Paladin was the primary source for much of the art, programmer Tom Fulp assisted with the game's art, creating some of the minion creatures for boss characters.[14] Paladin cited River City Ransom as his primary inspiration for the game's art style, noting the character's expressions when damaged as a particular point of influence.[14] Fulp added that several beat 'em ups from the 1980s and 90s influenced the game, such as Guardian Heroes, Final Fight and Double Dragon.[15] Much of the music for the game was created by Newgrounds users, with The Behemoth contracting over twenty individuals for their tracks.[14] Paladin himself scored two of the tracks in the game.[14] The soundtrack was made available for free on September 1, 2008 via the Newgrounds website.[16]