The P-Balloon was left out entirely from the video about the Cloud and other powerups. This articles explains that it's actually a held item.
In my last video, I showed a list of all of the (intended) powerups in Super Mario World. These included the Super Mushroom, Fire Flower, Cape Feather, Starman, 1up mushroom and moving coin. The powerups: mushroom, flower, star, feather, 1up, and coin [https://rgmechex.com/articles/2023-04-03/img/powerups.png] The six standard "powerups".