this is pretty easy... you can be anywhere in the game. you can select any level too. i will be using level 1 from world 1.

join whatever level you are using and press letter "R." this will put you into rage mode. press "ESCAPE" and center your mouse above "RESTART." step one complete.

position yourself! get in a comfortable position, and place one finger on your "R" key and another on your "ESCAPE" key. for example, i used my thumb on the R key and middle finger on ESCAPE. have your other hand on the left mouse button. step two complete!

now that you are in this position, you can begin. you will click on restart (assuming you are still on the last step's screen) and then press R, ESCAPE, Left Mouse Button. R, ESCAPE, Left Mouse Button. R, ESCAPE, Left Mouse Button. you can go pretty fast too. continue this until you see the achievement pop up on your screen. congrats!!