Boss Rush Mode

**Boss Rush Mode** is a game mode in which the player will be fighting Bosses only.

## Access

To unlock Boss Rush Mode, the player must:

* Unlock Magic Area.
* Meet Valkyrie during runs and buy 3 Feathers of Valkyrie from her.

After the player has met the two requirements above, Valkyrie will appear on top of the gravestone in the Magic Area, indicating that this mode has been unlocked.

The player can talk to Valkyrie and use one Feather of Valkyrie to open a red portal. Enter this portal to start a boss rush game. This can be done up to 3 times a day, and interacting with Valkyrie after completing 3 runs will cause her to say "You have used up your chances today, feel free to return tomorrow."

It is possible to start this mode with Challenge Conditions or Badass Mode, and most conditions will apply normally, except the following:

## Rush to Purity

Rush to Purity is a modified version of Boss Rush Mode.

*For more information, see Rush to Purity.*
## Gameplay

After interacting with the Valkyrie to activate Boss Rush mode, an icon of a red helmet  will appear to the right of the status bar. Once the player enters the red portal, the Boss Rush game will start. If the player exits to the main menu or enters a regular game after opening the portal, neither the Feather of Valkyrie or daily attempt required to enter Boss Rush will be consumed.

Every Boss in this mode will be a Champion. If Badass Mode is enabled, an additional 20% HP increase (rounded up) is applied.

The mode has 3 floors devised into 13 levels, each floor has 4 levels with the third floor has 5.

* First floor includes a boss from Forest, Glacier, Relics, or Mechanical Ruins.
	+ Goblin Priest (Haunted) and The Giant are excluded, however.
	+ Buff select after level 1-1, 1-2 and 1-4.
* Second floor includes a boss from Knight Kingdom, Halloween, Dungeon, or Chiseltown.
	+ The player can also encounter Nian in the Knight Kingdom biome.
	+ Bosses from Cave, Swamp and Grave may also appear in this floor if the player has already beat them in Level Mode. The player will also get a random Challenge Conditions after defeat the boss.
	+ Buff select after level 2-2 and 2-4.
* Third floor includes a boss from Volcano, Spaceship, or Neo Isle.
	+ Iron Will Wavebreaker is excluded, however.
	+ The mode is completed when one reaches 3-5, where the Magic Stone is absent. Instead, the Valkyrie will appear on a large tombstone, with the clear time engraved on it.

Each level (except 3-5/4-5) will contain 5 rooms, layout in a plus shape:

* The South room is where the player started, indicated by  on the mini map.
	+ A white Chest and a Gold Chest can be found in this room
	+ Other character NPCs, Vending Machines and the Scammer will not appear.
* The center room can be a chest room  or a special room , which act exactly as those rooms would in a standard run.
	+ Not subject to Task Board conditions.
	+ The Special Room cannot be a Champion room.
* The West and East rooms are filled with crates.
	+ The player can break these crate for energy or Health Pots if they had Crate Buff.
* The North room will contain a boss .
	+ Defeat the boss to open the portal to the next level.
	+ A Boss Rush chest will also appear.
		- It will contain a random weapon (can be the boss's motif weapon) and a random small potion. This includes bosses found at 3-5 in Level Mode.
		- This chest can spawn at 3-4 even if the next level is already the end of the game mode.
		- If the  condition is active, two bosses (the secondary boss can be any boss in its respective floor, regardless of what biome was chosen) two red chests will appear accordingly.

## Related Achievements

Clear Boss Rush Mode - Normal
Clear Boss Rush Mode - Badass
Clear Boss Rush mode - Normal within 10 minutes.
Clear Boss Rush mode - Badass within 15 minutes.
Complete Boss Rush Mode with Paladin with challenge conditions without reviving
*Reward:* Ku skin for Paladin

## Trivia

* This mode was added in Update 2.2.0.
* The tombstone at the end of the game has "THANKUPLAYER" written in Morse Code.
* The gravestone was on the upper right corner of the Garden before the Update 2.5.0.
* For an unknown reason, the room with the tombstone and Valkyrie is marked as a boss room in the minimap.
* The diamond on the certificate will be grayish white instead of the color of the last defeated boss.
* The particle effects around the red Boss Rush Mode portal are the same as the ones around blue Level Mode portals, giving it a weird look as the particles do not fit the red color scheme.
* Having the Mode Hopper allows the player to enter in this mode without using feathers, once per day.

## Gallery

Level 3-5, where the Valkyrie is waiting.Boss Rush certificate. Note the white gem