HINS's record on the legit any% Arcade run really looks like autoclicker, i tried it and it seems like it is.

Silver555 is not an autoclicker, is just me clicking very fast.

tried using a autoclicker and it looks just like this, you can set the clicker to shoot at his exact speed. i still think is not posible with a mouse to click that fast.

Is not possible using one finger but it is with two.

that's not how a mouse works, using two finger cannot make the clickng faster.

but you are not taping a button, with a mouse it doesn't make the clicking faster.

It's possible. You put your index finger from you left hand on the upper left of the left button of your mouse. After that you put your index finger from you right hand on the bottom right of the same button. Once you did that start the game and then when you shoot the zombies you must clic the upper left with the index finger and after that clic the bottom right with the other index finger(exactly in that order). Repeat the cycle as fast as you can and you will get it.