Versus splash screen
From SmashWiki, the Super Smash Bros. wiki
The versus splash screen is a gameplay element used in Super Smash Bros. Ultimate. This screen shows the combatants of the match in their official render and their alternate costume. It will appear after everyone has selected their fighter in a versus match. In Super Smash Bros. for Wii U, similar displays appeared during gameplay on the Wii U GamePad when tapped, as well as on the Boxing Ring's jumbotron.