Dan-Ku-GaA followup to Kaiser Knuckle in the vein of Street Fighter II: Champion Edition, adding playable boss characters Gonzales and Azteca as well as moveset and mechanic changes. This was the second time Taito attempted to create an upgrade to Kaiser Knuckle, after Kaiser Knuckle EX, a very simple version that did nothing but lower the CPU difficulty of the game.
Dan-Ku-Ga eschews the 5-attack-strength system of Kaiser Knukcle, making most useful strong attacks into "command normals" performed with forward or down-forward and heavy punch or kick. It adds a juggle system for combos unlike other fighting games at the time, and jump cancels on air attacks. The Crush meter still exists, but the move-specific enhanced power zones beyond stage walls are gone.
This is also the first fighting game to include a training mode, selected by the third option on the menu (which is still in Japanese only).