Read this if the game doesn't load.

Important Notice: Ignore Control Keys Mentioned Below! Check Control Options within the game.

Batman Begins (GBA)

When the game loads, press Z  to select the language, and keep press Z to read the next instruction and start the game. Press Down Arrow + Left/Right Arrow to roll, attack with X key and Jump with Z key.

Related;  Batman Returns   |   Batman   |   Batman Forever