Alter Ego Challenges are an exclusive Chapter 2 Season 1 set of challenges for Battle Pass holders. Once the Battle Pass has been purchased, the Alter Ego Challenges will be available to complete. The challenges can be completed any time until the Season ends. The rewards for the Alter Ego Challenges consists of multiple style options for all the Chapter 2 Season 1 Battle Pass outfits, and also a secret outfit, along with a secret back bling and secret harvesting tool.
The leveling system has been changed after Season 10. The original leveling system has been removed, and the Battle Pass tiers are now called levels. Whatever number the Battle Pass is, is what a player's level is. By reaching Level 80 or above, a player can earn all the Chapter 2 Season 1 Battle Pass outfits besides Fusion, at Level 100. The max level has increased over 100 this season, which makes it seem most likely that an average player can reach Level 100 without purchasing levels.
Sorana was revealed to be the secret skin of the Alter Ego Challenges on November 19th, but she was not available to unlock yet due to the letters not being able to be fully collected yet until November 28th.
The final challenge is the only one to have three rewards for all three stages. Every other challenge has three stages, but only two challenges.