You would actually press Start to
start the game.
View attachment 7679481
It's a mode toggle into and out of game, between game and menu. Pause is just another form of menu/non-game, but it's weird to have the button called that when "pause" isn't applicable in all games. However all games do have a Start.
The modern equivalent of toggling between content and menu is the 3 lines. That's fine as design language for an app, but applying that to a game that already has a better concept is lame and gay.
But Japanese is read from right to left. If you have some symbols (letters) in a list, and you tell a Japanese designer to write out that list, the first on the right is A, and the next one to its left is B. Who cares how those
gaijin do it, why do they want Jap games anyway?