Crossword puzzle clue "super cool"

Super-cool ... or not cool at all?

Cool like a cool cat

Cool syst. for keeping buildings cool (or hot)

Cool, cool customer

"Cool," to a cool cat

"Cool," to those who think they're cool using rap slang

Name of the first level of Special World in "Super Mario World" for the SNES, right before "Tubular" and "Way Cool" (how '90s is that?)

Super-cool time?