Popular nearly everywhere except the US, the MSX was an attempt to create unified standards among computer hardware makers. A good place to start learning about this system is at MSX Resource Center.

Games:
Castle of Cagliostro
Legend of the Gold of Babylon

The NEC PC-8801 dominated the 8-bit computer market in Japan in the 1980s. Giant Bomb has an overview of the system, a list of its games, and its technical specifications.

Games:
Castle of Cagliostro
Legend of the Gold of Babylon

The Super Cassette Vision was a system sold in Japan by EPOCH in 1984 and in Europe by ITMC under the name Yeno Super Cassette Vision. Giant Bomb has a good overview of the system, its games, and technical specifications.

Games:
Lupin III