The final fight of the game, is not Supreme Calamitas, but Providence, the King. WARNING! To avoid lag and occasional [?], play this on the link turbowarp.org/1205213752 Scroll down to learn how to beat him. How to beat him: Phase 1: He summons 3 royals, a royal healer, defender, and assistant. The assistant has to be defeated in order to fight the king himself, however to fight the assistant, you have to defeat the defender, and to fight the defender, you have to defeat the healer. Look at the boss bar to see who to fight next. Phase 2: You have to fight Providence, who starts off by blasting holy projectiles at you, then goes into Laser Mode. When you are close to Providence in Laser mode, there are 4 lasers. You can deal damage to Providence by hitting the lasers, however he will start a bullet hell portion. How to dodge Bullet Hell: To dodge Bullet Hell, it depends on what bullet hell is being used. For the Spear bullet hell, he fires spears in a half circle. To dodge this, either go further away from Providence which makes the dodging easier, or try to get to the half that is not filled with spears. For the Light bullet hell, stay close to providence, and move up, and down, and rarely left or right. Phase 2 (continued): Once you deal enough damage to Providence, he revives the 3 royals. They will circle around Providence and block your attacks. Defeat the 3 to have the best chance to beat Providence, however you can beat Providence without defeating one. At the end of the fight, Providence turns white and fades out.
Thanks to @jljr2 for the original boss fight, and I basicly added the changes. If you want to remix this, I highly recommend using Turbowarp. Note that the Flight bar is broken