Hmm, application looks quite interesting. Why am I not going to learn Japanese?

Japanese is just practising and memorizing the characters, so it's a little bit harder as Korean. Might try it out later.

great I need this...
somehow after learning hiragana and katakana, you can play japanese games... partially...
altough I only remember a, i, o, no, da, me, ka, fu
damn...

You will be able to read the menus most of the time... but that's all... you won't get a thing about the story...
Anyway there are like.. 46x2 kanas... it's somewhat easy to memorize, you'll get it pretty fast, so it's worth it... And guessing what's the engrish word behind de kanas isn't that hard.

Upper beginner and intermediate? When I studied Japanese, we had to learn hiragana/katakana the first 3 weeks of the semester. By the time you're intermediate, you should know hiragana/katakana and about 100 kanji. Nice looking tool nevertheless.

^This.

While I appreciate the effort that must have went into this project, if you need to review something as simple as hiragana and katakana at the intermediate level or even upper beginner level, perhaps Japanese isn't for you.

yeah if you take a Japanese class they will drill those into your head within the first month.  No matter how much Japanese vocab I forgot while learning Korean I can't forget hiragana and katakana, it's like the alphabet now, permanently imprinted in my mind.

It's quite useful thing...