The birds are singing, flowers are blooming, on days like these, kids like you...

Should be burning in hell!!

boss fight has begun. You have the choice to attack or mercy. You can go down the genocide and kill sans or mercy and pacifist. It's your decision. Tell me if you want to go down the pacifist or genocide!!

Gaster blaster fires at you hint: the only way to beat him is to tire him out till he sleeps..