Sega All-Stars: Subspace Unleashed

Sega All-Stars: Subspace Unleashed is a Japanese-American action role-playing/fighting game developed by Sega and released for the Nintendo Switch, Nintendo NX, and Nintendo 3DS.

Plot
In this action packed adventure, The Sega All-Stars face a new threat called the Legion of Subspace, who wants the seven Chaos Emeralds for world domination and to shroud the entire world in darkness. It's up to Sonic, AiAi, Vyse, Beat, Ulala, Amigo, Gilius and the other Sega All-Stars to save the world.