Concept 2...

I know it's not logical yet, but I'll try to do better.

...

More Blood

Bloody Breath?

Ultimate Worst Beauty

Edit sprite by me.

The just concept.

Style v2?

Sans

My sprite v3?

Undertale Bloody Breath re-reboot? + Continues? Phase 1-19.5 (soon phase 20) and beta phase 14.