Heya! I've been working on my Japanese for a little while now, and this is a great way to learn! If I had one point of criticism so far, it's the fact that we don't have to ace a level before moving on to the next one.
As completionist as this may sound, I think it's important that we know certain characters before moving on to learning new ones. It's important to learn things bit by bit.
But other than that, this is great!
You actually get only 10 lives on each level, so you would still need to know previous characters to a certain extent. Plus, there are occasional "review" levels where characters from previous levels appear. Since this is just a game I tried to make it more lenient so everyone can enjoy it, but if you feel that you MUST get 100.0 on a level before moving on to the next, nothing stops you from doing it! (Even if you are good at the language, getting 100.0 on some of the later levels can still prove to be difficult)
 "Kana Warrior / かなウォリアー"){kind=icon}
You actually get only 10 lives on each level, so you would still need to know previous characters to a certain extent. Plus, there are occasional "review" levels where characters from previous levels appear. Since this is just a game I tried to make it more lenient so everyone can enjoy it, but if you feel that you MUST get 100.0 on a level before moving on to the next, nothing stops you from doing it! (Even if you are good at the language, getting 100.0 on some of the later levels can still prove to be difficult)