Fighter's History Dynamite, also titled Karnov's Revenge in certain markets, was released for the arcades March 17, 1994. Due to change of hardware to SNK's MVS platform, the control configuration was reduced from six attack buttons to just four (only light and heavy attacks are available this time). Likewise, the game was released for the Neo Geo home console, as well as the Neo Geo CD, on April 28, 1994.
A new gameplay feature is introduced in the form of "one-two attacks". When the player presses a heavy attack button while performing a light attack or blocking, the interval between light attacks is reduced, making combos easier to perform. While this feature is not mentioned on the instruction card, the final page of the home Neo-Geo version's manual mentions it, describing as the "one-two attack" system.
Source: Wikipedia, "Karnov's Revenge", available under the CC-BY-SA License.