Even with the water drained, shallow puddles remain that will immediately fail the challenge if stepped on.
To complete the challenge, you must kill the Ferryman without allowing him to heal even once . ultrakill 5-1 challenge
The most effective "pro tip" is to by taking the Secret Exit to level 5-S. Even with the water drained, shallow puddles remain
Once the third valve is destroyed, a notification reading will appear. Strategy and Survival Even with the water drained
Practice "Slam Storage" or using the Rocket Launcher for extra air time to bypass difficult terrain. Guide :: Completing 5-1' challenge. (Don't touch any water)