Hahaha. Now the thing that is funny about this meme, is that the name of the Pokemon is 'Amoongus', however what the OP has cleverly done, is that he has edited the pic of Amoongus to look more like the character from the video game 'Among Us', which is a pun on the name 'Amoongus'. Additionally, in the video game 'Among Us', the objective is to remove imposters from the pack, and Amoongus in this picture is not really an Amoongus, he is in fact a character from the video game 'Among Us' pretending to be an Amoongus. This exemplifies the brilliance of the pun and this why the joke has extra humour.
