I'm going to be uploading the Alien transformation, so I'll start with Chamalien, I hope you enjoy and there will be more, and if there's an alien that you would like to see get a transformation in the Shadow 10 style let me know in the comments

Alien: Chamalien
Species: Merlinisapien
Home Planet: Melangio
Powers: Comuflage, Hypnosis, Retractable Stinger, Enhanced Reflexes, Enhanced Ability

Source of the information: 5YL fandom website
Link: https://5yl.fandom.com/wiki/Chamalien