This is a true Solo run of Miitopia's famed Tower of Dread boss rush! Most uploads of this challenge aren't quite accurate, as they include a traveler NPC, but it is absolutely possible without one! I even included a few pointers for the tougher fights!

Timestamps:
0:00 King Cow
1:18 Calc King
3:07 Frog King and Queen
6:12 Dragon Lord
12:40 King of Hounds
16:48 Dark King and Queen
22:19 Evil Sage
34:15 Dark Sun