Here's how you can play as him.

Shin Akuma is unlockable in Ultra Street Fighter II: The Final Challengers, Capcom revealed during the Street Fighter 30th anniversary panel at San Diego Comic-Con 2017.

To unlock Shin Akuma, do the following:

1. Select Ryu, cancel on Color 1

2. Select Ken, cancel on Color 9

3. Select Sagat, cancel on Color 8

4. Select M. Bison, cancel on Color 7

5. Place the cursor on Random, press L and R at the same time

It should be noted that Shin Akuma cannot be used in local online and Internet battles.

Ultra Street Fighter II: The Final Challengers is available now for Switch.

Thanks, @Nightwing2xxy.