He will Spawn in a room with no hiding spots and a locked door, few seconds later S-399 will rush from the front and stand at the door, and bossfight music will play once the bossfight music have amped up he will start with one of his many attacks. He'll start with 300 Health)
Attack 1: S-399 will Spit out 3 purple acidic orbs, if you touch them it will deal 25 damage. Attack 2: He will send clones of him that come from portals, once they leave the portal they'll take a second before they rush to the other side. (Randomized Clone number) if touched they will do 35 dmg Attack 3: He'll rush back behind Door S-400, and a wait for a few seconds after he'll rush into the over halfway part of the room, in order to dodge this you must go to the very bottom of the room. Attack 4: S-399 will rush behind S-400 and then send rays of purple lights, you must dodge theses or you'll take 15 dmg. (they flash in different spots extremely quickly) Stun - After each attack S-399 has a chance to be Stunned, If he is he will darken a bit and you'll need to click him to take -1.5 health away from him. He'll stay stunned for (5 - 9 seconds) before brightening again and will prepare to send his attacks once more. Defeated - Once S-399 has been to defeated He will fade and the Final Door will Unlock. (Do keep in mind in any point of the bossfight to never touch S-399 as he will do 30 dmg is so.
