|This article contains information on of the franchise and is non-canon|
Fusion Ben is a villain who appears in FusionFall.
Fusion Ben resembles Ben Tennyson but with green hair, a dark green tank, a red jacket with a black stripe, dark green jeans, red eyes, and fusion matter skin.
Fusion Ben was created by Fuse and was in charge to cover the Space Center with Fusion Goo. Fusion Ben then held Fusion Gwen responsible for bringing him DNA samples from his doppelgänger, Ben Tennyson, so he can create Fusion Monsters for Fuse as an additional mission. The Hero is called to retrieve the samples that Fusion Gwen had dropped and to bring them to Ben one at a time. Finally Ben gives you a mission to enter the spaceport and defeat Fusion Gwen in order to receive the last sample, a Swampfire root. It turns out Fusion Ben used Fusion Gwen in order to buy some time to create to Fusion but the Hero destroys Fusion Gwen just in time to stop Fusion Ben from making any Fusion Monsters.
- He returns for a 2nd battle but doesn't carry a nano.
- Fusion Ben also appears in Providence HQ in containment in order to receive the hero's Alien X nano.
- Artwork of Fusion Ben depicts him using the Omnitrix in a similar matter to the original Ben Tennyson; however, his Omnitrix is not actually functional in-game. Notably, some of Ben's artwork depicts him using the Omnitrix as well, despite his not being functional either due to interference with its connection to Primus.