Circles

The circles are the main antagonists of the World's Hardest Game series. They can move in various patterns, at various speeds. These circles were the only cause of death until TWHG4, where bottomless pits, lava and drowning were introduced. If the square touches a circle, you will hear a punch sound effect, and the square will get sent back to the last checkpoint.

Trivia

 * They were not revealed to be sentient characters until TWHG3.
 * As you progress through the levels, the circles will change colors.
 * TWHG1:
 * Blue for 29 levels
 * Purple for 10 levels
 * Red for 10 levels
 * Black in the last level
 * TWHG2.1:
 * Blue for 37 levels
 * Purple for 12 levels
 * Red for 10 levels
 * Black in the last level
 * TWHG3:
 * Blue for 3 levels
 * Purple in level 4
 * Red for most of level 5
 * Black in the last 3 rooms of level 5
 * TWHG4:
 * Blue for most of level 1
 * Purple in the last room of level 1 and most of level 2
 * Green in the last room of level 2 and most of level 3
 * Red in the last 2 rooms of level 3 and most of level 4
 * Black in the last room of level 4 and most of level 5
 * And finally, the last 5 rooms of the entire game cycle through all 5 colors (one room each). Also known as the "rainbow" area.