Rambo III (prototype) - Arcade - ending
For several years, the parent ROM of Rambo III in MAME was a European version with different levels and a different ending compared to the US release. However, this version was later changed to a clone under the name "Europe, proto?" after a European version closer to the US final was dumped.
Main differences are the number of levels (4 here, instead of 5 in the final release), the 3rd level of this proto being unused in the final game and, obviously, the game's ending being a series of shots from the film instead of the staff roll in the final game.
To see the final release ending: https://youtu.be/wJAmD_epAIY
To read more details: https://tcrf.net/Proto:Rambo_III_(Arcade)
Played and recorded by V.E.D., as part of the videogame endings database, whose goal is to catalogue and create the world's largest archive of videogame endings! (what an humble and not ambitious project :D)
If you want to contribute please let me know!