Mortalos, The Skull Lord

Mortalos, The Skull Lord is the ninth boss in Jetshift. He appears at the end of World 8, atop the Void Tower. He is currently considered the penultimate boss, seconded only by Shift Final and Crystal Conflict, both of which being the final bosses of the game. Players should be well prepared and skilled as Mortalos is incredibly challenging.

Fight
When Mortalos appears, he will also summon two portals on either side of the screen, as well as an electric gate near the top of the screen where he roams. Attempting to pass the electric gate will instantly kill the player, so the player has to shoot through the portals in order to deal damage to Mortalos.

While the player can shoot through the portals, Mortalos can also use the portals to his own advantage, either by shooting directly at a portal or shooting a Star Radius in an attempt to hurt the player.

As Mortalos loses HP, he will make fun of the player's actions and speed up his attack rate, while increasing his damage reduction. In addition to this, he will also lose his teeth and eventually his eyes.

Quotes

 * Pfft, is that the best you can do? (when Phase 2 is triggered)
 * You've got some back-bone, haven't you? (when Phase 3 is triggered)
 * You think doing THAT makes you hip? (when Phase 4 is triggered)
 * You're quite sternum, aren't you? (when Phase 5 is triggered)
 * YOU WANT TO GET FRACTURED? (when Phase 6 is triggered)
 * Ugggh... just kill me... if you have the guts! (when Phase 7 is triggered)
 * You really crack me up doing that! (when attempted to be instantly killed with an overpowered weapon or custom-made mod that insta-kills bosses)