This is Donkey Kong Country (2000) for the Nintendo Gameboy Color. The game is CARTRIDGE ONLY. In testing, the game loads and plays. Due to testing on an Analogue Pocket, I was unable to test the cartridge battery's save function.

GAME DESCRIPTION
Donkey Kong Country for Game Boy Color (2000) is a impressive, handheld adaptation of the SNES platformer by Rare, where players control Donkey Kong and Diddy Kong to recover their stolen bananas from King K. Rool. It features varied, fast-paced platforming across jungle, mine, and snow levels, optimized for GBC with unique color, bonus games, and a save-anywhere feature. .