I wanted to start a collection as well. Especially with Japanese games. I thought Wata doesn’t grade Japanese Game Boy games.
Now, I have seen Japanese Game Boy games graded in Coop13s Collection thread, such as Pokémon Pinball.
www.elitefourum.com/t/coops-collection/33310/1
Since when are they grading these? Or what regulations do they need to meet to get graded?