Why would someone make something like this? I’m glad they did though. It’s fifteen minutes long, made for a pair of Japanese Sharp-produces home computers. Note that the proper name for this is not ASCII-art, as it makes heavy use of Japanese characters. Also note that enemy shots don’t ever seem to contact the player’s ship despite appearing to contact it in multiple places, so I don’t know how accurate the conversion is. Also also: no music, and only the occasional beep for sound. And, after the second level, it loops through some basic terrain forever with no enemies, with no Moai Stage, so you can stop watching after the second Big Core blows up.
(The Japanese description to the video notes that there’s no hit detection and no enemies after Stage 2.)
MZ-80 MZ-700 Gradius (Youtube, 15 minutes)
