Bio Miracle Bokutte Upa

Bio Miracle Bokutte Upa (バイオミラクル ぼくってウパ) is a Platformer 2D video game published by Konami released on 1988 for the NES, but it was
never before available outside of Japan. Players take on the role of
baby Upa, a prince of the Akuyo kingdom. Prince Upa must take on an
adventure spanning seven different worlds in order to rescue the kingdom
from the dangerous demon Zai. Upa must defeat the enemies he meets along
the way by inflating them. Upa can then use these floating enemies to
his advantage by bouncing off of or riding on top of them. The prince
must also avoid deadly thorns and pits while keeping an eye out for
helpful items such as milk (to restore health) and bells (for temporary
invincibility) if he hopes to succeed. If you’re looking for a cute and
solid platformer with a hero unlike those in most other games, then look
no further than BIO MIRACLE BOKUTTE UPA.