Clubstep

Clubstep is a bonus Demon level in Geometry Dash unlocked by collecting 20 Secret Coins. Introduced in update 1.60 along with Electroman Adventures, and giving 14 stars upon completion, Clubstep is commonly recognized as one of the hardest official levels in normal mode. Along with Theory of Everything 2, it is rated Demon and both are unlockable.

Level overview
It is currently the one of the two demon levels in the Geometry Dash levels list. Many of the obstacles require going in or around so-called demons. Clubstep introduces lots of new items, including invisible spikes, and invisible blocks.

Trivia

 * Clubstep was the only main Demon level until 1.9, which introduced Theory of Everything 2.
 * Clubstep has 6 ship portals, however it only has one gravity ball portal and two UFO portals.
 * Most levels give a color in Practice mode, and an icon in Normal mode. For Clubstep, however, it gives off a black color as a reward for Normal mode and a UFO for completing it in Practice mode.
 * The name "Clubstep" is a pun on dubstep, which is also the type of music playing during the level.IMG_0782.png
 * Just before the first ship portal on the invisible blocks. A gap in the map can be seen at the bottom of the screen. A likely result of copy and paste indicating the level was rushed through.
 * If you jump right before the first ship portal instead of hitting the gravity pad, you can fly upside down in the first part of the flying section.
 * At 53 seconds and 63 seconds into the level there are large unfilled areas, another indication the level was rushed through.
 * Clubstep is the only level that rewards the player a color for completing the level in Normal mode.
 * If you hold down right from the start of the level, you will jump above the yellow spring and then you'll jump again from the block that near it, even if there's a spike on it.
 * Theory of Everything 2 and Clubstep give the same amount of stars and they are both demon difficulty levels, but Clubstep requires 20 coins to unlock, while Theory of Everything 2 requires 30.