Gadget has spring-loaded legs of course, but when extra lift is needed, he has his inflatable coat. I'll have to review to episodes to see if he ever employed the coat in a confined space and smushed anyone.
King Koo Koo. His capacity to inflate and grow is directly proportionate to the mean-spirited gags suffered by others. Maybe the weirdest example of body inflation ever animated. His expansion is random and temporary because of his bi-polar nature: Sadistic delight or grouchy self-pity.
Popeye gets revenge on Bluto for faking a nervous breakdown and lounging in a hospital. The best part is, I didn't have to make this up. MS PAINT over pen and pencil.