There should be option to manually adjust speed - then it will be absolutely viable platform for learning hiragana/katakana. It's sometimes too fast or too slow for stress-free learning
Congratulations on monthly prize:) You deserved it. Have fun from making games and share them with us:) I don't mind even if your next game would be similar to this (in different world/circumstances and maybe stylistics). Howgh!
 "Kana Warrior / かなウォリアー"){kind=icon}
 "Legend of the Void"){kind=icon}
 "TextRPG: The Rise of Diablo"){kind=icon}
 "Hell Tour"){kind=icon}
 "Balloon in a Wasteland"){kind=icon}
 "Elona Shooter"){kind=icon}
 "UPGRADE COMPLETE!"){kind=icon}
 "Hedgehog Launch"){kind=icon}