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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Sonic boom creators 4 letters:

SSTS: Sonic boom creators
SEGA: Sonic boom creator?
SEGA: Creator of a Sonic boom?
SST: Sonic-boom creator in the sky
SST: Sonic boom creator above the clouds