Cheat method 1: Save splicing.
- Reach a save point.
- Immediately exit the game.
- Copy the save file to back it up.
- If you die, just replace the save file with the copied file!
- Rinse and repeat.
(This would not work given video due to the fact that music does not restart upon death, and cannot be disabled in-game.)
Cheat method 2: Photoshop.

Select the correct font and size, then fill in any numbers you'd like!

I do not intend to accuse anyone of cheating, just to bring attention to a possible error in the system.

Also the fact that you can bring triple jump into any stage