|Affiliation||Dark Hero factory, Puzzle-Brandex|
|Weapons||Gun and Katana|
|Location||Dark Hero factory|
- "Haha, You heroes don't stand a chance against Brandex"
- ―Grandex to a hero team
Grandex was originally a prototype Dark Hero, made to see if Puzzle-Brandex's experiment was a success. Grandex's experimental codes were too high, and Puzzle-Brandex decided that further testing was needed. Since Grandex was similar to Brandex, he thought that he might be able to run an army of his own. Grandex became a great leader, becoming a general. Brandex told him to work with the Hero Factory when he decided to join the good guys.
Abilities and Traits
Grandex has a gun for a hand. He is also very strong and can fly using powerful jets. His main color scheme consists of purple, orange, and black.
- He looks like a breakout hero
- He is the only dark hero to have the color orange