For this achievement, you need to glitch through any of the stages by means of exploiting the boundaries. This can be done by climbing over a certain wall and falling through the stage. The next section will describe exactly how to do this.

1. Get 2 QR codes (can be found in various levels) so you can buy the double-jump ability from the swag store.
2. Equip the double-jump and select the very first level.
3. Go left and hop on top of the purple shack thing.
4. Edge up to the left side of the shack as much as you can.
5. You now have to double jump to the left so you'll climb on top of the big wall. Use your first jump to jump straight in the air. When you are as high as you can be, use your second jump and hold left. If done right, you should climb on top of the giant wall.
6. Run left and fall down. You'll eventually respawn and get the achievement.

Hope this guide helped some people out on this achievement. Be sure to leave any suggestions for this guide in the comments.