While the arcade version was released overseas (in the US under license from American Sammy under the name Bio-Ship Paladin), the MD version was only released in Japan — however an American title screen is present in the ROM and displayable if the region is set to US, which may mean a US release was planned (this is unconfirmed).
It is UPL's only Mega Drive game — they would go bankrupt shortly after publishing it (the later Task Force Harrier EX was ported and published by Treco).
★ Complete with Case, gamecartridge
★ Gameclub ReproGames exclusive Release
★ Gameplay (In-Game) : Japanese
★ Box / Manual : Japanese