Footage of a Bizarre Mario Computer Program (???) from 010 - Nintendomania

Looking DEEPER into this weird stuff...
https://www.youtube.com/watch?v=AhgHFs-jv_8

At first, I thought this may had been custom animation, but it looks like there's program credits that appear at one point! Is this program well-known among anyone here? Trying to look up any sort of PC app called "Nintendo Mania" is unfortunately difficult.

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