EX-Fusion is an unnatural performance of Fusion. To be able to perform, EX-Fusion, you both fusees must wear the Metamo Ring and then perform Fusion. The result of EX-Fusion has the new being in a combination of the fusees. The outfit does not have the Metamoran jacket but rather a combination of the fusees clothing. The power of EX-Fusion is less the Fusion but the time limit is unlimited but it can be undone by removing the Metamo Ring.