Kirby Battle Royale is a Multiplayer action fighting game for the Nintendo 3DS that is released in November 3rd 2017 to celebrate Kirby's 25th anniversary.
King Dedede is hosting a tournament with 10 game modes for Kirby with the Kirby cloning machine and the winner wins a cake.
If you place a Kirby series amiibo or the Boxboy in the game, You can unlock special gear and costumes.