Hammerin' Harry on Famicom: a construction worker with a hammer against corrupt developers. Delicious concept, sharp social humor, solid gameplay. An original and charming platformer.
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Category
Platformer1 player3+
Description
Action game featuring Gen-san, a carpenter battling monsters with his hammer in construction levels. Published by Irem, released in Japan in 1990. Gen-san in side-scrolling view using his hammer to attack and construction site and dungeon levels. Famicom port of Irem's Hammerin' Harry arcade game.
Complete: box, manual and disc/cart very clean. Lightly handled.
Q1 damagedQ6 completeQ10 new
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Collector interest
Japan only Famicom version of Irem's Hammerin' Harry, titled Daiku no Gen-san, released in 1990. Its interest comes from the Irem name, a respected arcade house with a polished Famicom output, and from a conversion that stayed Japanese while the series saw only partial Western distribution. The value, supported by this territorial exclusivity and affection for the Gen-san mascot, appeals to collectors pursuing the Irem catalog.
Is Daiku no Gen-san still worth playing in 2026?
An Irem platformer, Daiku no Gen-san stages a big-hearted carpenter who clobbers monsters with his hammer across colorful, snappy construction-site levels. The hero's strong character, the hammer attack and the humor give it real personality, in a fluid, accessible action platformer. The difficulty stays steep and the formula classic. An overlooked gem outside Japan, worth recommending to fans of polished NES platforming and endearing mascots.
