Whomp 'Em © 1991 JALECO USA, Inc.
North American release. Game developed in Japan.
Description from the back cover:
Unknown perils lurk behind every corner! Seven powerful magical objects to use. Fight your way through eight complete worlds. Choose your own adventure. Grapple evil beasts at the end of each world.
GAME ID: NES-4W-USA
Released in March 1991 in the USA.
Game's ROM.