Daisenryaku English translation
大戦略 · Daisenryaku
Gaijin Productions' English translation of the Game Boy version of SystemSoft's war strategy game Daisenryaku.
What's translated
Gaijin Productions' patch translates the Game Boy Daisenryaku into English, so the menus, commands and unit information that the strategy game relies on can be read without Japanese. Version 1.0 came out in September 2000 and is listed as fully translated.
The game
Daisenryaku is SystemSoft's classic modern-warfare series: you produce units, move them over a hex map and try to take the enemy's cities and headquarters, turn by turn.
Playing it
The patch is applied to your own copy of the Japanese Game Boy game, following the instructions in its readme. The patch's database page linked here has the details.