This video was hosted on Vidme, which is no longer in operation. However, you might find this video at one of these links:
Gameboy multicart 70-in-1 (SD)
September 9 2017
As requested by MrIntellivision and some others here's a video about the Gameboy 70 in 1 Multicart. I show the cart and give a small demonstration of the games found on there. It's quite different from the many GBA multicart carts out there.