My bad, the Aron figure was Bullmark, not B-Club: https://order.mandarake.co.jp/order/detailPage/item?itemCode=1168853412&lang=zh
Yes, I think I am asking about the ones in the Bullmark Story Book. Maybe I should look for that book. Thanks! In fact, if memory serves, Aron was one of the first offerings from the new Bullmark line.
Here are four of them, there are at least two more: http://www.ultrakaijyu.com/ultraman-ace/hotarunga.html http://www.ultrakaijyu.com/ultraman-ace/kingcrab.html http://www.ultrakaijyu.com/ultraman-ace/varava.html http://www.ultrakaijyu.com/ultraman-ace/sabotendar.html