Böbl is a short game for the NES. Now available as a ROM file.
It was made in 1 month for NESdev compo 2019. We invite you to check all the other games from NESdevcompo 2019.
You're a bubble, water is your friend and solid blocks kill you. Hold A to dive, then release and let buoyancy handle the rest. Let's find all the lost duckies!
Source: The Developer Website.