Am I real? It's up to you..
I am real, if you flip me..
But, once you flip, I may bite you...
If I spit a 'POLO', I will become a little good..
If I split a 'POLO', I will become a little more good..
If I swallow a 'POLO', I will become fully good...
Can you guess who I am???
Hint:
Note: Please place your answers in spoiler tags. Also mention how you get to the answer.