Aruruu is a keep away lightning spammer. She's easy if you stay away and throw fireballs though. I wonder if Eruruu is the same way. I'll download her when someone finds the patch.
I'm glad the Shimon's edit of Tamaki is cheap. I like fighting cheap ai and now I have a character for the Convention Center stage. She has big health and will counter whatever attack you use. You can bait out the counter and combo her.