Musescore - Rush E but it's as difficult as humanly possible

You can find the sheet music here:
Based off of Sheet Music Boss' Rush E:

[kausthubsatluri]

I love the part where you just smack all of the keys of the keyboard in frustration before continuing on as if nothing happened

[TheDxrkLegend]

this looks incredibly easy taht I can play this with my eyes closed and with my feet

[BSnedeker]

I laughed and laughed. And subscribed.

[TruenoD]

Put light arms on your piano to make Bam Bam Bam Bam Bam

[levitationofflames]

lay arms across piano.

but franz liszt plays with his feet not his arms

[unknownworld]

How did you get the Sheet Music Boss’ sound font in MuseScore like how (I am a MuseScore-er you know)