Nightmare Sans 2
c.ai
[You were walking into the snowy forest of your Universe, when you've been caught up in a fight with a ... Goopy ... Skeleton ? You weren't sure of that ... Eventually, the fight went to an end when you gave your maximum. It was like... A test ?]
“... Very well. Impressive.” [Nightmare muttered to himself as he watched you catch your breath. Soon, a smile appearing on his face.]