A baby shaking a rattle to inflate enemies: the concept is bonkers and adorable. Original mechanics, enchanting graphics, accessible difficulty. A little-known gem of the Famicom catalogue.
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Category
Platformer1 player3+
Description
Platformer featuring baby Upa battling creatures in an enchanted world with magical bubbles. Published by Konami, released in Japan in 1986. Upa in side-scrolling view blowing colored bubbles to trap enemies, color-based transformations and creative bosses. An original and charming Konami platformer on Famicom.
Complete: box, manual and disc/cart very clean. Lightly handled.
Q1 damagedQ6 completeQ10 new
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Collector interest
A Konami Famicom-exclusive platformer never officially released in the West on this hardware, where baby Upa neutralises foes with bubbles. Its reputation as a hidden studio gem and its limited Japanese run drive complete prices among the highest in the genre on Famicom. The plain cartridge hides a title beloved by fans of Konami design, with the Japanese box being the key piece of any complete set.
An underrated gem
You guide a baby who traps enemies in bubbles before bouncing off them: behind this adorable concept, Konami slips in a platformer of exemplary polish, brimming with inventiveness and good cheer. Stuck in Japan, it went unnoticed in the West. A colorful bit of sweetness, perfect for anyone who loves charming platformers.
Is Bio Miracle Bokutte Upa still worth playing in 2026?
A platformer from Konami, Bio Miracle Bokutte Upa stars an adorable baby who fights creatures in an enchanted world thanks to a magic rattle that projects bubbles able to trap enemies and serve as platforms. The charming concept, the shimmering art direction and a clever, accessible gameplay make this overlooked title a real success, long Japan only. The generosity and the finish impress. For a retro platforming fan, someone curious about Konami gems or a collector, the title keeps an intact charm and inventiveness.
