"Dangun Feveron" was developed by Cave, a company known for creating "bullet hell" shoot 'em ups such as the "DonPachi" series. The game was produced by Kenichi Takano, one of the founding members of Cave, and in development alongside the vertical shooter "ESP Ra.De." (1998). "Feveron" was originally a more generic take on the shooter genre, however, the team wanted it to have its own unique presentation and mechanics after the game returned generally unfavorable results at location tests. Several meetings were held to discuss ideas, where one Cave employee suggested the disco theme. The game was revised multiple times, with the final revision focusing on gameplay centered around dodging fast-moving projectiles. In one of these revisions, the cyborg soldiers were originally the projectiles that were fired from the player's ship. Early names for "Feveron" included "Fever SOS" and "Baro Fever"; "Fever SOS" was re-used as the game's international title.