Street Fighter Alpha 2 released in 1996. Though the SNES was on its last legs at that time, the port was really good. 25 years later, a fan has discovered a hidden cheat code previously undiscovered. It allows players to have access to the all-powerful boss character, Shin Akuma.
Programmer Gizaha, who is from the Zeldix forums, found the code through reverse engineering. It takes a couple of steps to play as Shin Akuma.
What you have to do if you have a copy of the game in your SNES or as part of the Wii U Virtual Console:
Beat Arcade Mode and get a new high score
Enter your initials as “KAJ”
Plug in a second controller and hold down the L, X, Y, and Start buttons at the start screen
Use the first controller to select Versus while the above step is occurring
Hold Start while highlighting Akuma to play as Shin Akuma