Cho Aniki is the first installment in the mostly Japan-exclusive shoot 'em up franchise of the same name, Cho Aniki. The game follow two playable characters, Idaten and Benten, who are sent by the heaven realm to defeat the evil, galactic-invading body-builder, Bo Emperor Bill.
The players must travel through five different worlds battling an onslaught of enemies with deisgns ranging from suggestive to absurd. Players can pick up "protein" to power up their attacks, bombs to destroy every creature on screen, and flying support characters for additional damage.
The game was first released in the US on Virtual Console on September 8, 2008.