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:
Kale found a few, here they are:
- Perfect Mah-Jongg
- Excite Baseball
- Mobil Suit
(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