Boss Fights

Boss fights are a special part of the game where the player has to hit the right keys to deal damage to the boss. This mode is only available in SCGMD4.

Introduction
Boss fights were introduced when SCGMD4 was released. During normal play, sometimes you will receive a message which asks a question whether they player wants to fight or not. This question is usually related to the boss with a joke. Players have a choice whether to engage that boss fight or not, so denying a boss fight results in the player playing the song normally.

3 bosses are encountered randomly (with one exclusive to pro mode) and 3 have certain conditions to encounter. The likelihood of encountering a boss randomly is increased if the player does well in their previous song. During a boss battle, hitting a key that is not in the song deals minor damage while the correct keys deal considerably more damage. 2 bosses have limitations, meaning they can only be damaged if the player has a certain multiplier.

A boss battle is won if the player manages to completely deplete the boss' health before the song ends. An Overkill is achieved if the player damages the boss further enough after defeating it. Once a boss has been beaten, it can be played against at any level at will, but only at the difficulty it was beaten in.

Black Skull
Once you've unlocked the song "I Just Wanna Burn", you can see a purple light with a skeleton face floating on one song. Playing that song and passing with atleast a Bronze adds a purple ball to the bottom right of the music select screen. When you get 3 purple balls, the next marked song will always guarantee an encounter with a boss. For the first time this happens, the final marked song will always be "I Just Wanna Burn", and the boss will always be Dark Guitar Maniac. After that boss is beaten, marked songs may continue to appear which can guarantee an encounter with The Pizza Guy, The Puppet, or The God of Time.

Boss Fight List
There are in total 6 boss fights with individual skills and some limitations:

1. The Pizza Guy

 * Encounter: Randomly. Usually the the first boss the player encounters.
 * Skill: No real interruption, unless you feel his speech bubbles are.

2. The Puppet

 * Encounter: Randomly.
 * Skill: "Dancing Mad" - Covers part of the lanes when the skill is active.

3. The God of Pirates

 * Encounter: Play "Momentum".
 * Limitation: Only reachable at the sea, so the multiplier must be at x3 or x4. If you’re in pro mode, you can’t hit him at x5 or x10, so you will have to purposely miss notes to “control” your multiplier to beat him.
 * Skill: "Jolly Rogering" - Makes all notes white when his skill is active.

4. Dark Guitar Maniac

 * Encounter: Complete 3 marked songs in a row and select the fourth marked song, which is always "I Just Wanna Burn".
 * Skill: "Mischief" - Dark Guitar Minions will appear on the lanes while also making fake notes which disappear only a short distance away from hit area when his skill is active.
 * Overkill: "You hit him so hard his pants flew off. They weren't clean either."

5. The Brothers

 * Encounter: Play "Switch vs. Evil-Dog Round 3".
 * Skills: Unlike other bosses, The Brothers have multiple skills, which are used depending on their total health.
 * "Old School" - Inverts the lanes where the keys are showing up, so 'up' keys would be on the bottom lane instead on the top lane. This skill is used by the headphone brother and only at 100% - 66% health.
 * "New School" - Hides the key commands, so the notes are only recognizable by their color and/or lane position. This skill is used by the visor brother and only at 66% - 33% health.
 * "Phusion" - Activates both Old School and New School, so the only way to recognize the notes is from their color. This skill is used by both brothers and only at 33% - 0% health.

6. The God of Time

 * Encounter: Randomly, but is noticeably rarer than The Puppet. This boss can only be played against in pro mode.
 * Limitation: Only reachable at outer space, so the multiplier must be at x10.
 * Skill: "Accelerando" - Notes are sped up when the skill is active.