Honkai: Star Rail All Hidden Challenges in SoulGlad Scorchsand Audition Venue

This is gonna be a long one because there are lots of challenges but there are also lots of achievements that can be obtained from this one hidden agenda.

Complete the Scorchsand Vacation Adventure Mission

First of all, once you complete the whole 2.2 Penacony Trailblaze Mission (yes, you definitely need to complete this), check your message from Aideen to start the Scorchsand Vacation Adventure Mission.

This mission will unlock the whole venue for the Soulglad Scorchsand Audition Venue. Just complete the mission until the end since it's not that hard. Just need to follow the navigation.

Collect All The Clues About the Treasure Hunters

Once you finish the mission, talk to Mr. Soda #0 near the Calyx Hunt in the Audition Venue. He will lead you to find all his companions in other 6 venues.

Speaking of those companions, their locations are marked on the map so just open each venue (Dreamplay Fantasia, Gunfire Time, and Superstar Showdown) to interact with all of Mr. Soda and get the clues.

Dreamplay Fantasia: Acting Challenge

Click the points corresponding to the number in a sequence:
- 1 time on the left
- 2 times on the upper side
- 2 times on the right
If you accidentally miss it, press X and re-enter again. Upon completion, you will get the achievement 'Audition Funhouse' and the prompt 'Proceed to the hidden challenge.'

Talk to the Bothered Employee and help him get rid of the trash cans. These 2 Lordly Trashcans will count towards your chest count in this Audition Venue. I don't know if you will enter battle if you choose the wrong options for this, but I choose: Yeah, curse The Family! > (Give over the money and take the goods).

Dreamplay Fantasia: Action Challenge

Click the points corresponding to the number in a sequence:
- 1 time on the upper side
- 3 times on the right side
- 2 times on the lower side

Talk to the Almost-Fainted Employee and help him get rid of the Warp Trotter. This trotter will count towards your chest count in this Audition Venue.

Gunfire Time: Gunfire Trial

Click the points corresponding to the number in a sequence:
- 2 times on the upper side
- 3 times on the right side
- 2 times on the lower side

Talk to the Terrified Employee and head to the lift. Go to Floor No. ??? of the mansion and talk to Hanu to open the Hanu Wars interface. But close it back to complete the challenge. Yeah, you don't need to enter any of the Hanu Wars stages for this one.

Gunfire Time: Time Trial

Click the points corresponding to the number in a sequence:
- 1 time on the left side
- 3 times on the upper side
- 2 times on the right side

Talk to the Heartbroken Employee and complete 2 Dream Jigsaw puzzles. You can head to these 2 locations using the Pinball Machine.

Extra: Gold and Gear... Clock Achievement

When those 2 puzzles are completed, you can interact with the now-golden Clockie Statue to get another hidden achievement: Gold and Gear… Clock

Superstar Showdown: Arena I

Click the points corresponding to the number in a sequence:
- 1 time on the left side
- 4 times on the upper side
- 2 times on the middle side

Talk to the Irritated Employee and knock down all billboards once (it doesn't have to be at the same time, as long as each billboard has been knocked down twice) to complete the challenge.

Superstar Showdown: Arena II

Click the points corresponding to the number in a sequence:
- 1 time on the upper side
- 1 time on the middle side
- 3 times on the lower side
Upon completion, you will get the achievement 'Audition Rizzler.'

Extra: Blood Sugar High Achievement

Talk to the Immersed Employee and play the Hamster Ball Knight: Fast & Furynuts. If you manage to complete the challenge while collecting all coins, you will get an achievement 'Blood Sugar High.'