http://www.gamasutra.com/blogs/Betab...Was_Banned.php
So while discussing another game and a means for the game developers to squeeze out more money, I found out that in Japan the social game mechanic called Kompu Gacha was made illegal a few years ago. What is Kompu Gacha, you ask? Gacha is when you get a random prize by paying money. Kompu Gacha is when you get a grand prize for collecting a bunch of the random prizes. Sounds familiar, no?
That's right, that's EXACTLY how box events work. You can pay with virtual currency to open boxes, which sometimes give out random units. If you collect all those random units, you get a wrapper prize.
You could argue that's how Raid boss wrapper units also work, as it's random when you'll get the unit from a particular boss.
Seeing as how Gree is a JAPANESE company, and they are specifically mentioned in this post about how their games utilize such mechanics, how are they getting away with this?