To upgrade your spaceship, collect resources and use them in the upgrade menu. Resources can be gathered by defeating enemies or through in-game events.

Yes, you can customize the appearance of your spaceship by using various cosmetic items found in the shop. These items do not affect performance but enhance the visual experience.

Modules in Pocket Rocket serve as enhancements for your spaceship, providing boosts in speed, defense, and other attributes. They are unlocked and upgraded using credits and energy obtained from gameplay.

Navigate to the inventory screen where you can manage your resources, modules, and other items. Here, you can also check your spaceship's equipment and make adjustments as needed for optimal performance.