Acetone removes super glue. Super glue remover and nail-polish remover both contain acetone. (Although the nail-polish remover has other junk in it). Acetone is not friendly to polystyrene and will dissolve it. I don't know what else will remove it without eating your Bulldog
I stand corrected, do what Eric said. I just tried some acetone on a piece of styrene and it seems to be OK, at least for a brief exposure, but I pretty sure it will eventually dissolve it.