No wonder I haven't heard much of Sega prior to the Master System.
Kinda different here, while we got a lot of SEGA arcade games, SEGA Master System wasn't gaining much success here in Indonesia because the market was saturated with Famiclones (a term for botleg /console of NES / Famicom) which were sold very cheap.
Nobody could compete with them, not even Nintendo themseleves.
One of them was Spica who's also released a multicarts (contains many pirated NES games in a single cart) so most of NES physical games here were pirate games.
Nintendo was really furious back then and threw lawsuits against them and after a long battle they finally succeeded but the damage was already done.
Nintendo still kinda hate Indonesia for that, I think. Unlike Sony and Microsoft who have official representative in Indonesia, Nintendo has none.
There isn't even eShop for our country, we had to use North America / Japan region to buy games digitally.