Floor

List of floors

The floors available to the player during Floor Selection depend on the segment of the tower the player is on, with the available options skewing towards harder floors the more progress is made in the segment. Certain floors in a segment share the same root name and basic geometry, and are differentiated by different difficulty ratings, objectives, or name prefixes describing the floor's particular hazards.

If the player has not played a floor before, or if the boss is not revealed, the floor's name displays as "???". An "Updated" splash displays next to the player's completion time if they beat their recorded personal best for that floor.

Special floors

• Control Room

The final floor that the player has to reach in a run. In the tutorial, the player fights Marina Agitando, and on subsequent runs, Overlorder.

• Elusive-Bounder.Floor

This is the floor where the player fights Pinging Marciale.

• Intensifying-Harmony.Floor

This is the floor where the player fights Parallel Canon.

• Layered-Rotator.Floor

This is the floor where the player fights Asynchronous Rondo.

• Vending-Machine Corner

This is the floor where the player can access the Vending Machine.

First climb

When playing Side Order for the first time, the player has to go through a 10-floor first climb before they are given access to the full 30 floors of the Spire of Order. This effectively functions as the tutorial of Side Order. During this first climb, the floors and the color chips given are not randomized, the player starts with three lives, the damage taken is set to 100% and color chips have double the efficacy that they do on subsequent runs (e.g., two Ink Saver (Main) chips on the first climb reduce ink consumption to 50%, equivalent to four Ink Saver (Main) chips normally). The player can choose to play 7F to 9F in any order. On 10F, the player faces Marina Agitando. The initial completion of the first climb gives a flat  50 as the score is not calculated.

The first nine floors in the first climb are unique to the tutorial and do not appear in subsequent runs.