Hi there! There is a topic about Hiragana & Katakana, after you read that it might be a good time for a little practise.
I found this 2 links on the internet. There are 'fun game' hiragana & katakana. What is about? It's like this. You see a leter from hiragana, and you have to choose what it is...
Simple games, a little bit fun that might help you memorise it.
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Kanji games
http://www.msu.edu/~lakejess/kanjigame.html ---------------------------------
ChipChat Japanese Traning
http://www.chipchat.com/NihonGo/