I see, so its not unusual. I'm still not done with Katakana yet though. Some of the characters are similar to hiragana but most of them are completely different. There are also the Katakana characters that look too similar to other katakana characters already. Like: "shi" and "tsu", and "n" and "so".... grrrr. Yet...if I'm already having this much "fun" memorizing Katakana, Kanji is going to be a blast! (If only I didn't have A.D.D....)