Insidious Step is a notoriously hard Demon level by Noobas, due to fake line trolling, many fake jump rings and crucial timing. It was created in Update 1.8 and inspired by Clubstep. It is generally considered a Hard Demon.
The level starts with a extremely difficult cube with many fake lines, fake jump rings and completely invisible objects. After a while, the player will transform into a very difficult ship with many, many, fake lines and invisible spikes. After the ship, the player will transform into a cube again, but less difficult; It has many jump rings and fakes. After the cube, the player will transform into a very difficult ball with many, many fake objects and fake lines. And then the player will transform into 2 very short and easy segments, cube and ship. However, after these segments, a dual ball will come. There is blue orbs and one block place at top ball and main hazards at bottom, the player should fly the ball and avoid obstacles. This ball is one of the hardest parts of the level. But is very short. After the ball, the player will transform into a very difficult cube with traps and many, many fake jump rings. And then they will transform into a less difficult ship without fakes. However, after the ship, the player will transform into a very difficult UFO where they can't see objects and fake line trolling. After the UFO, the player will transform into 2 very short segments, ball and ship. After these 2 less difficult segments, the player will transform into a very difficult cube with fake jump rings and then a very difficult ship with tight spaces. After a while, probably hardest part of the level will come. A notorious dual ship with very fast speed and constant gravity change. Just like the first dual part, there are many gravity portals and only 1 space at top, and with main hazards at bottom. And then the level will end with a simple cube.