Geometry dash main levels

3. Could be beaten before Clubstep but is rated 15 stars.
4. Level was made in the period when orb gimmiks were used a lot.
7. The most forgettable main level that isn't that bad. First to have black background while being a cube and jumping.
8. Introduces robot.
9. Introduces dual
11. Introduces spider.
12. Introduces upside-down ship.
14. Easy level with blue background in beggining and two triple-spike jumps in the red area.
15. Introduces mirror portal.
16. Introduces mini mode.
17. Level introducing yellow orbs.
18. Introduces ball.
19. As Vortrox said - an Australian level, cause it introduces flip-gravity portals.
20. Level you need 10 coins to play.

1. (1 C and 2 S) Introduces wave.
2. Introduces UFO.
5. Another version of another main level.
6. Introduces swing-copter.
7. Should be easiest level beggining with pink background introducing jump pads.
10. Fastest level.
13. Introduces breakable brick blocks.
16. A level that reaches high into the sky, but has a long black cube section, ship, and the hardest upside-down section everybody has died to.