Jax

Jax is a very famous Korean player and level creator in Geometry Dash. Jax made many demons, most of which made it into demon map packs, and the first ever Auto level. Jax also made The Nightmare, one of the first and liked Demon level.

Levels

 * The Nightmare (Most liked/popular demon, Demon pack #3)
 * Project J (Demon with many dislikes)
 * Auto play area (First & Most liked/popular auto level)
 * Super Cycles (Demon, Demon pack #2)
 * One Day (Insane rated 9 Stars)
 * Auto jumping area (Another auto level)
 * Operation (Another disliked demon)
 * Oh Yeah (First level & harder rated 6 Stars)
 * JaXstep (Insane rated 8 Stars)
 * Stand On Track (hard rated 5 stars)
 * Square Madness (harder rated 7 stars)
 * Exploring Area (hard rated 5 stars)
 * Deluxe Bomba (insane rated 8 stars)
 * Level A (normal rated 3 stars)
 * Timing (harder rated 6 stars)

Trivia
Jax's UserID was found to be 1620