Suggestion for open-world improvements.

They could activate the stands around the map (hot dog carts, ice cream shop, clothing store, cafés, etc.) so players can take side missions working there and earn coins. Those coins could be exchanged for basic accessories like glasses, headphones, gloves, and more. These would be optional missions — longer, but adding variety and a new perspective to the game.

It would also be great to add a pizza delivery mission on a skateboard. For example, if you take too long, the pizza gets cold and the customer gets angry, causing the mission to restart.

Another important improvement would be to add a swimming training mission. That way, every time the player falls into the water, they can swim, climb out, and escape on their own — without having to wait for the game to respawn them at the last checkpoint.

Lastly, they could add an area near a school, with the typical yellow school buses passing by. In that area, a trick mission could be activated. When entering an alley, three Doberman dogs start chasing you, and the mission is about escaping by doing tricks and dodging obstacles on the street until you reach a safe point where you finally get away from them.