Sansronu/Full Out

"''if you take one more step forward, you're REALLY not gonna like what happens next." - ''Sansronu before the fight

Full Out Sansronu is a boss fight exclusive to the Genocide Route. It is the third last fight, just before the Genocide Asgore and Final Boss Temagee fights. Full Out Sansronu dodges attacks in the first phase of the battle, meaning he can't be damaged. In the second phase of the battle, he starts attacking on Lusk's turn, hitting his soul in the action menu.

 Soul Types 

Sansronu begins with the red soul, but often uses the blue soul of integrity as well. The blue soul applies a gravity effect to Lusk's movement.

 Attacks (Phase One) 
 * First attack - Lusk's soul turns blue and bones come up from the bottom. Lusk's soul then turns red and a path created by unicorn horns rushes past. After that, Lusk is barraged with a series of Gastthew Blastthew attacks.
 * Red soul - Sansronu slams Lusk against the sides of the bullet board, bones rushing up on every side.
 * Blue soul - Gastthew Blastthews fire at Lusk from both sides and there are three platforms to jump on.
 * Blue soul - Light blue and white unicorn horns scroll through the bullet board.
 * Blue soul - Unicorn horns come from both sides with one point that can be jumped through.
 * Blue soul - A sea of bones at the bottom of the bullet board and platforms that Lusk can jump on to pass them.
 * Blue soul - Unicorn horns start randomly scrolling across the bullet board and Lusk must use platforms to dodge them.
 * Blue soul - A sea of bones at the bottom of the bullet board and unicorn horns moving up and down in the middle. Lusk must use a single moving platform to pass them.
 * Red soul - Bones scroll through at the top and unicorn horns scroll through at the bottom.
 * Last attack before second phase - When Lusk selects fight and the fight bar starts moving, a Gastthew Blastthew knocks it away.