I tried finding more videos of RX-78 stuff, but Youtube could only give me pages and pages of stuff on some stupid toy.

Here's an advert for the machine: https://www.youtube.com/watch?v=oRIrR7HVDyU

Kale found a few, here they are:

- Perfect Mah-Jongg https://youtu.be/h4jgPWOJ5sg
- Excite Baseball https://youtu.be/g2xeLdiIlqE
- Mobil Suit https://youtu.be/i-2HX8tIVAg (it says Mobile Suit on the box)

And Takeda's page has pictures of TheProwrestling and the 3 Dimension thingy. http://takeda-toshiya.my.coocan.jp/rx78/index.html