Yes or No?

Question

The game expects input from the user in a YES or NO format.
If the format is incorrect, the program should ask again.
I want the game to use different funny phrases instead of boring ones like "Please enter yes or no".

English is not my native language and I find it difficult to come up with such phrases. I would be glad if you can help me come up with these phrases in English.

Answer 1

Come on, yes or no?