Dr. Lava on Twitter: "(3/3) Barunda was likely cut because Jigglypuff made for a better balloon Pokemon. To see more Lost Pokemon from the 90's, check out my Gen 1 cut content
A Weather Balloon : r/pokemon
How to Find Balloon Pokemon - Drifloon | Pokemon Brilliant Diamond and Shining Pearl - YouTube
Pokémon Balloon Race - Bulbapedia, the community-driven Pokémon encyclopedia