At the start of the 1970s, Nintendo briefly tried its luck in the baby gear market, with two products. One was a plastic seesaw called
Twins. The other was a foldable baby stoller.
The stroller was called
Mamaberica (ママベリカ). Japanese people are fond of contracting words, like 'persacon' for 'personal computer' or 'pokemon' for 'pocket monster'.
Mamaberica apparently is a contraction of 'mama baby car'.