A: Those colors of pyramids (cyan, orange, purple, clear, white) are available again, but not in that particular set.
When we produced Pyramid Arcade, we switched the primary way we sell pyramids (again!) Since Pyramid Arcade comes with 3 stashes of 10 colors, when we created expansion sets for Pyramid Arcade, one of these (Nomids) was designed to increase the quantity of all ten colors, instead of separate packages of five Rainbow or five Xeno.
Also, we changed the design of the pyramids themselves, ever so slightly, so that the tips are a little bit rounder. This was so that we could pass safety testing for EU markets.