How do you convince your parents you can play M games?

well, if you're like, 15, you should be able anyways.but if you aren't if it isn't really bad, tell them to watch you play it. but if it's really bad, you'll just have to wait i guess.

Or go on YouTube and find a gameplay of the game that isn't that violent and show it to them. Say that this is what the game is, and they will probably let you get it.

like what it says at the beginning, ask your parents to watch u play it, BUT, dont do bed stuff when they watch you like killing, stabbing, ect.