I'm making a 2D quest based on the urban legend of hair traders. The goal is to sell your wares without attracting the attention of neighbors or the police. The mechanics revolve around the phone.  

The player is an old man.
Somewhere in a basement in an unknown Eastern European country sits an old man. We have phone, city map (the first two digits of the phone number will determine the area we are calling), and bags of hair. We must call strangers in different neighborhoods, offering to sell hairs. 
Hairs comes from capsules filled with nutrient solution, where people in induced comas are kept. This cunning, dark old man kidnaps people to grow their hair for sale.

Trading system:
Selling hair earns you currency. You use this currency to buy nutrition for the capsules (to keep the hair growing), gasoline for the truck that delivers the bags of hair to the end customer, and food for the dwarf slaves (the dwarf slaves work on the conveyor belt and load the hair into the bags).
There's also a "suspicion" meter. If the conversation ends badly, your suspicion increases. The bad ending is when Grandpa's warehouse is raided by the police.

Here are a few concepts that I have already made, the rest will be uploaded in the following messages.

This is a rough plan of the level where the player will sit.

Floor structure:

1. The topmost floor "Truck."
There's a truck here where we'll need to manually transport bags of hair. When the truck is full, we press a button and it leaves to deliver the hair (approximately 1.5 minutes away). Upon returning, the truck delivers the money. 
The truck consumes fuel.

2. "Old Man's Office" floor
This is where the main gameplay takes place. Here we'll call different numbers, here we'll collect our finished hair bags on a special shelf, and here we'll see all the inventory we've purchased (food, gasoline, capsule nutrients, etc.). There'll also be a radio here that you can turn on and listen to (as background music).

3. Basement with capsules
The lowest floor. Here are the capsules containing people, and working dwarf slaves. They service the capsules and bag the hair. The dwarves need to be fed (from our level, we can lower a bucket of food mass on a rope; the dwarves will run over and eat from it).

The game will feature a radio and cassette tapes, which can be purchased at the market. This is simply for variety and optional background music. There will be two main radio stations.

I generated the tracks for these stations, and all the lyrics are sung in a fictitious language. Between each track is a musical jingle, "Radio Uno." I suggest you rate the radio mechanics and listen to some of the tracks:

If you'd like, you can contribute to the creation of music tracks for my game, which will ultimately be included in the release. I personally created tracks in Suno, and I recommend you do the same.

Music requirements:

- You must send the full lyrics of your track (so I can check the lyrics to ensure they don't contain any hidden offensive connotations).

- The music must have a 2000s vibe (the year in the game is 2001).

- It's preferable for the music to be in a fictional language.

I would be glad if someone sends their examples!