Frisk's head took a bad knock as well, and they have to blink the stars out of their eyes before they can even start to try and get free from under his motionless body.

"Ginko! Ginko!" Frisk struggles and squirms to get out from underneath him, finally getting free and shaking his shoulder to try and wake him. "Ginko, wake up! You gotta wake up!"

Panic rises in their chest when they notice the blood, and they let out a small whimper. No, no no no, he can't be, he can't--!

Maybe if they didn't close their eyes so fast, they would notice he was still breathing.