Getting through Asgore wasn't much of a pain, since he didn't want to hurt you. Anyway, getting through the gate, you came across a bridge, with what seems like bars poorly made that it couldn't block anyone, and then you met Papyrus, who was quite chill. After following him to his stand, he told you to hide behind that conveniently shaped rock. You didn't get why, but sure anyway. Not long after, another skeleton came into view: Sans!
Papyrus: "sup, bro."
Sans: "YOU KNOW WHAT ‘SUP’, BROTHER. YOU HAVEN'T RECALIBRATED YOUR PUZZLES IN DAYS!"
Papyrus: "oh c'mon bro, i've got a ton of work... a SKELE-ton of workspuns"
Sans: "YOU IMBECILE!!! BUT WAIT, PAPYRUS, I THOUGHT THERE WAS SUPPOSED TO BE A HUMAN COMING TODAY?! HAVE YOU SEEN THEM??"
Papyrus: "a human? nah."
Sans: "HMPF, ALRIGHT THEN. I NEED TO CATCH A HUMAN TO BE IN THE ROYAL GUARDS... MWEHEHEHEEHEH! leaves"