This video shows some gameplay of all characters in the 4x100m Relay event from Mario and Sonic at the Olympic Games Tokyo 2020 on Nintendo Switch.
00:45 Mario, Luigi Peach & Daisy
02:06 Sonic, Tails, Knuckles & Amy
03:25 Wario, Waluigi, Yoshi & Donkey Kong
04:46 Shadow, Silver, Blaze & Vector
06:11 Metal Sonic, Bowser Jr., Dr. Eggman & Bowser