Battle against a true Hero [AU-Challenge P4]

Task 4 of ' s
Undertale AU Challenge
Which reads: Song name: Draw a picture related to a UT song.
Welp here we go:
I actually wanted to use "Save the World" in the first place, but while I was planning a picture, autoplay jumped to "Battle against a true Hero", thus my pencil dropped this

The concept of Underfell itself plays around quite alot with swapping "good" with "evil".....if you can even use these terms at all for Undertale....
Keeping that in mind Undyne here acts a bit diferent than the UT-Conterpart. While UT!Dy acts as the hero of the monsters attacking you at first sight in order to collect the final soul thus making the way out to the surface finally possible, UF!Dy has another position. Asgore disappointed her so horribly, she turned against him now leading the rebelion against the tyran. Not only will she actually save the human from one of Waterfalls Royal Guard-patrols but she will also try to reason with Frisk about joining their fight against Asgore. After all they both want the same: Getting out of this hellhole and be free....especially free form evil Gory.
However when Frisk dislines, Undyne will see them as a possible threat. If they really should get to Asgore he would get his final soul becoming almighty - worst nightmare for the whole Underground. Thus she will decide to kill the human in order to keep their soul for the rebellion.
Thus the Undyne-Fight is initiated  

 Le Fell Version of called UT Song

Task 1
Task 2
Task 3