This reminds me of something...

Challenger's Approach #18 (Pixies From Super Mario 3D World)

Challenger's Approach #19 (Toadette & Baby Yoshi)

Gameplay Screenshot #1

1 more DLC fighter and a few more alt. costumes before the direct.

Challenger's Approach #45 (Monika)

Challenger's Approach #16 (Boom Boom)

Challenger's Approach #61 (Natsuki)

This is you base roster. P.S that question mark just means random

Challenger's Approach #4 (01/04/19)