Challenges

There are currently 10 challenges in the game, each of which modify how the game looks or plays.

Every challenge starts the player with 100 health and the Pistol with no secondary or ultimate abilities. Except in the Mega Boss Rush Challenge where the player won't have health (Like Odr).

Name	Description	Unlock Requirements
Retro Run	Makes the game extremely pixelated, centers the gun on the screen and the player starts with maxed speed stat.	Unlocked by default
Boss Rush	Fight all the bosses except Fafnir and Nidhogg in a single challenge room in quick succession. Bosses do not drop loot, health or upgrades. Bosses can have modifiers.	Defeat Nidhogg[verification needed • edit • ?]
Full Auto	All weapons are fully automatic and the player is permanently under the effects of the Battle Lion Shield. Should the player find a Battle Lion Shield during a run, all cooldowns will be further reduced by another half, although weapons cannot fire faster than quarter-beats and abilities cannot be used faster than half-beats.	?
The Floor is Lava	The player is granted Odr's flight and movement mechanics, but otherwise still starts with the default challenge equipment and health. Any surface the player can walk on will rapidly deal damage in increments of 5 points and displays a lava effect when approached, similarly to the Frozen level modifier.	Complete Svartalfheim 2 on Hard difficulty
Supertime	The players and enemies can only move on the beat.	Unlocked by default
No Shop Or Treasure	No shops or treasures will appear on the run	Spend 500 Coins at Hugginn's Shop
Pistol Only	You can't use another weapon besides the Pistol	Spend 250 Coins in the Armory
Fixed Seed Random Items	The dungeons will be fixed, but the shrines and items dropped will be random	Complete Helheim 1 on Hard difficulty
Fixed Seed Fixed Items	The dungeons, shrines and drops will all be fixed	Complete Helheim 1 on Hard difficulty
Mega Boss Rush	Fight all the bosses except Fafnir and Nidhogg in a single challenge room in quick succession. You don't have health (Like Odr). Bosses do not drop loot, health or upgrades. Bosses can have modifiers.	Clear Asgard Crypts on Hellish