The "Game" is written using CVBasic compiler, which can compile for many platforms include Memotech.
Thanks to Oscar (Nanochess) for make this great tool.
DONKEY.COM https://www.mtxworld.dk/DONKEY.COM
DONKEY.BAS https://www.mtxworld.dk/DONKEY.BAS
DONKEY.RUN https://www.mtxworld.dk/DONKEY.RUN
Donkey.mtx https://www.mtxworld.dk/Donkey.mtx
Donkey.Wav (RAR) https://www.mtxworld.dk/Donkey.rar
The wave is untested for now, please report if it works

Youtube (ColecoVision version) https://www.youtube.com/watch?v=pgGRnh3JIcM