Negative Game Modes

Negatively numbered Game Modes are glitched variants of gamemodes which messes up the entire game. Trying to play most of them (with the exception of -1) will crash the "negatively affected" game. (The mode numbered -1, which only has stone walls, functions like NewBartoszx1's Calm Hit, but starts with 200 balls, instead of 25 balls.)

How to Access
According to Knot126, he used Game Guardian, which is a hacking tool, to edit the memory where the game mode number is stored in and setted it to a negative number.