Checkpoint 6

Checkpoint 6 (aka Pink Cave or Cave2) is the checkpoint after Checkpoint 5, and before Checkpoint 7.

Description
The checkpoint's color scheme focuses in either maroon or dark cerise. Checkpoint 6 introduces no new features, but variations of previous obstacles, such as smaller spinning glass panes. It is also extremely fast. The difficulty on this checkpoint for first-timers could be significantly massive.

Stage 1 (a.k.a Pink Canyon 1)
The player will be faced with faster-moving spinning glass panes. These are similar to the ones in Checkpoint 3, but faster and thinner. The crystals are: 1 or 2 Octahedral Crystals on Moving Columns and 2 Pyramidal Crystals on the ceiling. Its music is also the bosses' main theme, and is repeated as well in Endless Mode stage 1 and 4, Zen Mode, and Smash Hit - Official Trailer.

Stage 2 (a.k.a Pink Cave and Narrow)
Stage 2 has 2 parts.

Part 1
Part 1 introduces more spinning propellers (some vertical ones as well) and lasers. And this zone doesn't have a door when the music ends (it goes to Part 2). Its music is also the bosses' intro (also repeated in Zen Mode.)

Part 2
Part 2 has many Square on Strings and some more propellers. This stage is featured in Smash Hit - Official Trailer.

Stage 3 (a.k.a Pink Canyon 2)
This stage may be difficult. It has similar obstacles from the 1st stage, and there is a 1-button door to end, going to Checkpoint 7 (the boss in Mayhem Mode), with 2 octahedral crystals on one of many, crystal stands.

This stage looks very similar to the first stage, but slower, with inverted gradient background and different music.

Compare the gradients:

Boss
See Boss Fights.

Significance in Marketing
Along with Checkpoint 4, Checkpoint 6 is a widely distributed checkpoint thoughout Mediocre.
 * The Checkpoint 6 stage 1, Endless Mode stage 1 (and 4) and Boss's main theme are the same music.
 * The end section of the three soundtracks listed above is the same music.
 * Checkpoint 6 stage 2 part 1 is the Boss's intro.
 * Checkpoint 6 is featured in the Smash Hit Presskit, including a Square on Strings.
 * The Square on Strings is featured across a lot of Smash Hit content.
 * A lot of Checkpoint 1, Checkpoint 4 and Checkpoint 6 is featured across the trailer.

Trivia

 * The third stage is similar to the first stage, but the music is different, and the gradient is inverted.
 * The Pyramidal Crystals on the ceiling act as lights.
 * The Boss Fight of Checkpoint 6 has the most amount of Mayhem Bosses in the game, at 3.
 * Stage 2 Part 1 has unused door segment. However, the unused door segment file it still exists in the game's files.