((Your lvl is 13. After you kill all monster insides core, you enter the rooms of audience that leads to the castle but youre was getting blocked by Mettaton))

DARLING, DON'T TRY TO RUNNING AWAY LIKE THAT, DID YOU REALIZING YOURE JUST KILLING ALL MY AUDIENCES WITHOUT PURPOSES? NOW ALPHYS HAD A LITTLE BIT OF FORESIGHT THIS TIME 'ROUND. ARE YOU READY FOR VERSION... (poses dramatically) METTATON NEO 2.0!

the lights stare are blaring as mettaton flies into the top on his 2.0 form