Deltarune Chapter 3 Secret Boss Location & Shadow Mantle Use
In Deltarune Chapter 3, there is a Secret Boss that can be found at the end of the Chapter. It is not much of a Secret Boss than an undefeatable boss. The secret boss is none other than the Roaring Knight who appears when your party rescues Toriel. However, there are two endings. The first Ending is when you get absolutely stomped and another is when you survive the Roaring Knights attack for a long.
Deltarune Chapter 3 How To Unlock Shadow Mantle?
To find the Secret Boss i.e. Roaring Knight, in Chapter 3; you are required to advance through the storyline and solve the Parental Lock Code i.e. keeping the door shut. get S-Rank in all the Board Games or Rounds of TV Time.
Shadow Mantle is a necessary item that will be used in the fight against the Roaring Knight.
Once you have introduced yourself to the audience and started the TV Time, you will find yourself playing a video game. It is necessary to get an S-Rank in Game 1 (Board Game Game Board).
This allows you to get inside the S-Rank door and access the S-Rank room. Inside the S-Rank room, there is a video game console. Interact and play 1st video game of S-Rank to get the Ice Key.
Similarly, get S-Rank in Board 2 Game to access the 2nd video game of S-Rank. In the 2nd video game, you will get the Shelter Key.
Finally, there is one more S-Rank video game, and to access it, you must defeat and reunite Elnina and Lanino. Go back in the S-Rank door and play the 3rd video game. Progressing to the end of the video game will get you the Shadow Mantle armor which can be used to equip a character to drastically decrease the incoming damage from the Roaring Knight.
Persevere the boss fight and you will get the Shadow Crystal after surviving the Roaring Knight.