There are a few tipes of people.
There are those who are insanly good and that could do everything while blindfolded during a night with no moon (not that it matters, it's just to make it more impressive).
There are those who sold their soul to the devil in excange for help.
There are those who want's to get this achivement legit.
By the way there are also the veterans that started as a red hooded wanna be famous, if you are one of those you have my respect pal.
This is a present for you

Don't get me wrong... what are u even doing here?
Are you wasting your time?
Maybe you're just bored that you are 2 good.
Idk what to tell u mate... maybe try that blindfolded thingy \_(-.-)_/
C'mon dont be like that, I wont let u leave empty handed
Here

I'm sorry you had to do that, please don't hunt me with your demon pals.
Uhhh that's all i think, you have no soul you can't even play this game.
how does it feel to be beaten by a game? even it has a bigger soul than you
(Litterally the "souls" in the title is huge)

Soooooo what can I say, this achivemnt is tough but you already knew that since you are here.
I have 3 tips for you
1)It's the hardest one, try and try again until you get it.
It's difficult, i know but eventually you'll get better; it's also important to do it with a calm mind otherwise you'll do dumb mistakes that will only frustrate you. Take has many breaks as you need and maybe you'll get it before breaking your keyboard.
(by the way I did it like this, I'm not the best whit reflexes so it took a lot of my time. I failed getting to 297 three times but atlast I got it :D )
2) OK DON'T READ THIS POINT... IT'S WRONG AND I'M DUMB ^-^
(read it if you want I it's not going anywhere, and it's not like I'm gonna be sad if you skip it... maybe not that sad... who's crying, I'm not crying! you are! ALSO... IT'S A JOKE.
Btw meeting Sir Pupset again was a bit pleasant)

It's the longest, just start a new game and do it while it's easy.
If you want also the 100% achivement you'll have to be very patient cuz you'll have to do everything again, but at least it will be easy.
THE MISTAKE ENDS HERE.

3)Just give up, it's only a stupid achivemnent.
Don't waste your time like that, do something smarter... force one friend to do it so it's his time not yours XD (by the way it's a joke, please I wont take responsibility for you so just don't).
If you are one of those 100% gamers just know that you have my support JUST DO IT!!!

Just want to say thanks to everyone for readying this.
it's a stupid guide but I sincerely hope that it was somewhat funny or helpful (maybe both).
Well good luck and don't be to upset/obsessed on getting it or not.