This game does a great job with the mall emersion! Everything looks so alive and vibrant. The game itself is a fun and satisfying loop to play.
The only feedback I have is to maybe put a limit on the x-ray ability, or limit it per person found (e.g. you can use it twice between each person found). It is too easy to just spam and find the people you need. I know the first level that I played, I just looked without it. But definitely used it for the higher levels when you had to find 4 and 5 people.
Overall, I enjoyed this game very much!