Undertale - Pretty please

Ok, I'll let you win….if you complete this task and I will consider to let you win….please do the following:
1) collect me several brown rocks, about 139,377 to be exact.
2) Kill Ug-Thak, The Lord of Skags.
3) Pilfer the lost staff of Mount schuler!
4) Defeat the destroyer of Worlds!
5) Dance for my enjoyment!
6) Find me a Shrubbery.
7) Steal the lance of the undying.
8) steal the legs off Mettaton during a live show.
9) Steal Alphys's prized anime collection.
10) Steal your father's trident.
11) repeat steps 1,6 and 8.
And finally……for 12…. give me the corresponding gifts from the "12 days of Christmas" song…NOW GO!

Is that tape? Did he tape horns to himself?