Hop It! is a game for two players set in a lily pond full of nervous frogs and tadpoles. They’re nervous because the pond is also a nesting ground for the Blue-Headed Frogmuncher.

Tadpoles swim from one space to an adjacent space; frogs move by hopping over adjacent pieces. Any tadpole hopped over immediately matures to become a frog by turning it over. They grow up quickly in this pond! Any frog hopped over is scared to death by the shadow and removed.

A player wins as soon as the opponent is reduced to a single piece; not having any breeding partners, its species dies out.

Official rules: http://www.cameronius.com/games/hopit/