- Brainstorm (1987)
- Japanese ID number: C-104
- Accessories: "Arcana" Headmaster pilot, left & right "High-Energy Photon Pulse Cannons"
- Intended to represent Brainstorm (Primax)/984.17 Alpha and Brainstorm (Primax)/785.06 Alpha.
- Brainstorm transforms into a turquoise Cybertronic fighter craft. Both of Brainstorm's twin pistols attach to the front of his alt-mode's nosecone to extend it and augment it with two canard wings. As with all larger Headmaster toys, Brainstorm features both a cockpit suitable for his partner, Arcana, to sit in and an abbreviated Tech Specs bar graph inside his chest hidden under a hinged panel. When a compatible Headmaster head is plugged into the socket on Brainstorm's body, the bars will show three of that character's Tech Specs.
- Voyager Brainstorm
To be added