Super Street Fighter 2 Turbo Akuma Playable in the Anniversary

A video has shown that it is possible to unlock Super Street Fighter 2 Turbo Akuma in the Street Fighter 30th Anniversary Collection. And for some reason, he's available to use in ranked games.

Super Street Fighter II Turbo, Street Fighter Wiki

Our Street Fighter 30th Tribute: Akuma the Hidden Boss of Super Street Fighter II Turbo

Super Street Fighter II Turbo Akuma hidden boss fight - unlocking and beating Akuma

Super Street Fighter 2 Turbo - SuperCombo Wiki

This year marks the Street Fighter II series' 25th anniversary

Super Street Fighter 2 Turbo Akuma Playable in the Anniversary Collection

Street Fighter II (Video Game) - TV Tropes

Hyper Street Fighter II - Wikipedia

Street Fighter 30th Anniversary Collection Review - LevelSkip