Here's mine. It's a modded Arcade1Up. There are over a 150 vertical 4-way games on it only w/ several 80s 4:3 horizontal games that I decided would work fine in 3:4. (Elevator Action, Cliff Hanger, etc) In this video I'm just highlighting the multiple versions of Donkey Kong.
It's an old PC from work stuck in there running Attract Mode w/ the Arcade Flow theme. I'm using mame, hbmame, and a couple PC games.
I'm still on the hunt for more DK. Thanks to Paul's vid I will probably add the Japanese version. I know Congorilla is the exact same rom as Crazy Kong but I remember both machines out in the wild so I wanted both. Other than that, the other Donkey Kongs are all different. Did I miss anything?
Big Kong
Crazy Kong
Crazy Kong Part II
Crazy Kong Part II (Alternate Levels)
Crazy Kong 117
Congogilla
Donkey King
Donkey Kong (US)
Donkey Kong II: The Return of Jumpman
Donkey Kong Advanced
Donkey Kong Redux
Donkey Kong Christmas Remix
Donkey Kong Extra! Edition
Donkey Kong Foundry
Donkey Kong Hard
Donkey Kong: Pauline Edition
Donkey Kong Remix
Donkey Kong Spooky Remix
DK Trainer #1 - Sock Master
DK Trainer #2 - Barrel Control Coloring
DK Trainer #3 - Just Springs
Donkey Kong Crazy Barrels Edition
Donkey Kong Wild Barrels
Donkey Kong Freerun Edition
Donkey Kong Reversed
Rainbow Donkey Kong
Donkey Kong Junior
Donkey Kong 3
Kong