Took a while to make this because I had to do all of the challenges first. Pictures are from the wiki which is linked below.

Challenge Cosmetics:

Checkpoint 1 Soul Lantern
Checkpoint 2 Red Scarf
Checkpoint 3 Worker's Bandana
Checkpoint 4 Basic Cape
Checkpoint 5 Elder Slugfish Tail
Checkpoint 6 Root Infestation
Checkpoint 7 Cubic Scarf Silver
Checkpoint 8 Pipe
Checkpoint 9 Leaf Sprouts
Checkpoint 10 Fissure Fox Head
Checkpoint 11 Flower
Checkpoint 12 Demon Wings
Checkpoint 13 Demon Tail
Checkpoint 14 Cubic Scarf Gold

WIKI:
https://badorkbeegames.fandom.com/wi...

Game Link:
https://www.roblox.com/games/12151453277

Timestamps:
0:00 Challenge Cosmetics and their Checkpoints
3:23 Miscellaneous Cosmetics