The Game Booster, aka Game Boy Booster, is a Game Boy emulator for the Nintendo 64. It was released by Datel. It does not emulate sound and certain games with uncommon mappers are not supported. A single 11Khz tune loops indefinitely in place of Game Boy audio.
There is also a option to change the palettes of two of the games sprites, and the background, There is support for Super Game Boy borders and palettes, though the palettes are incorrect and changing them via Game Booster menu will overwrite the game’s with the user’s selection for the duration of the game.
A repackaged version of this without the Rebound Mission pack-in game was released under the name of GB Hunter.