I bought a case of BS-03 and 2 of the 24 figures came with 3 dice. I'll have to check to see if one of them was the Dolphin, I think it was, but I don't know what the other figure was.
A translation for the game would be great! I have not seen one yet but I'm sure it's only a matter of time.
As you pointed out, the dolphin and the bat in the BS-03 case come with the bonus die. Also, the Lion and the Shark come with bonus cards at the same ratio per case (1:3). I've seen no evidence of any other figures in BS-03 having chase dice other than the Dolphin and Bat, or chase cards other than the Lion and Shark. Yet, anyway, please scream real loud if anyone out there found something.
If you happen upon a sealed case, the top layer is (if memory serves) all dolphins, plus the chase card lion and shark, plus the chase die bat. So you can just shave those off right there if you want them.
I'm curious, is anyone actively collecting the dice in every single one of their flavors? I started to but canceled my preorders when I realized I was paying north of $5 for extra dice when I already had extra dice I didn't know what to do with.