Off the top of my head (without knowing exactly what images you are referring to) I would guess at Spheres and Tori, those are almost always my favorite objects to use when booleaning in Bryce. After that, would definetly be metaballs, they are a bit difficult/strange to work with but really fun.

If you can point or post to a render that you are thinking of, I'll upload that scenefile  also.

p.s. Lol, you saw that? Yeah, Hollywood has really forgotten what can make great "guy" action movies. Meaning action movies that are really just made for cool action. We are getting our butts handed to us by other countries now but that's a great thing, imo. It'll only help make us (hopefully) cool again. :o)

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