GungHo is giving the Cho Aniki a reboot on the PSP. Rei Cho Aniki is essentially game "zero" in the series' chronology, predating the PC Engine game currently on the Virtual Console.
Idaten and Benten return as the main characters along with Shoten, a new character, that wasn't selectable. Idaten is your typical straight shooter. He has a powerful beam with limited reach. Benten is the exact opposite of Idaten. Her shots are weak, but she has a spread shot plus two pudgy cupids, Mika and Eru, that fire homing shots. Idaten is followed by Adon or Samson. Both of the body builders mimic Idaten's shots and act like muscle men shaped gun pods.