In the spirit of funny cat pics (although if we're being strict on the streetfighter 2 analogy, that's a tiger uppercut - which is kinda more appropriate )
He's not small by any stretch of the imagination, at his peak he was between 6' 1" and 6' 2" and weighed 235-260lbs. He's a good sized guy and those two make him look like a runt. Imagine someone 5' 8" and 150 lbs in that picture, they really would look like a child.
I'm 6ft1, well more like 6ft 2, but I havent check for awhile . My 18 yr old brother is 6ft 7. He makes me look like a dwarf.
At work I made a PowerPoint version of this - taking the cat and the dog-drool out and then animating them back in. [cat flies in to kick dog, then drool splatters out] Very poor technique (only so much photo-manipulation you can do with Microsoft Paint ) but the kids love the effect
here's some good ones: Safety Warning Labels I'd link them into a post, but the text is half the fun.