I haven’t played the game yet, but the description of this jam entry caught my attention so I watched a bit of the trailer. There is even voice acting on top of the old school visuals, and it’s pleasant to hear the Vietnamese names being pronounced right! (adding exact characters and tones would be even better, but I suppose there may be some font limitations)
The voice actor was a Vietnamese-American. Vietnamese was not their first language. I didn't expect them to pronounce the name, but they practice spelling it regardless. When I heard the voice record I was completely amazed.
I wasn't good at writing back then (not that I am now), so it was more like a skill issue rather than technical limitation.