Invincibubble's appearance differs from that of SpongeBob SquarePants. He has a muscular body and slightly longer legs, while his head and pants remain the same size. He also wears a blue mask with a wand.
Invincibubble has made his first appearance during The SpongeBob Movie: Sponge Out of Water. He and his team of superhero friends save the Krabby Patty Secret Formula from the greedy hands of Burger Beard the Pirate, who uses a book to get the formula, since whatever is written in the book becomes real.
Invincibubble can use his "wand" on top of his head to blow bubbles, as the "wand" has the advantage to cover the items.
The strength of his bubble blast is so strong, that he can use it to fly through the air, while carrying somebody.
The bubbles can also be condensed and used as physical projectiles that inflict major damage on opponents.
Invincibubble is always happy, friendly, smart, and excited to be a part of a team, which is the main point of The SpongeBob Movie: Sponge Out of Water. He teaches Plankton about teamwork and also teaches him how to say the word. But when they are on an adventure, he is intelligent.