Welcome to BOSS 3! Here, the remixers actually have health. When you level up, you also gain some HP and DEF and restore all HP. When you remix, the remixer's health will decrease by the same amount as the boss's HP. When you remix, just change the number in the 'Load | Remix' block by one. You don't even need to change the thumbnail. Remix chain ends at 4176. Boss will never die.
