How do you get nova gems by using spooks?

In the game "Spooky’s Jump Scare Mansion," you can obtain Nova Gems by using Spooks, which are the in-game currency. Players can earn Spooks by completing various tasks, such as defeating enemies, exploring, and collecting items. Once you accumulate enough Spooks, you can exchange them for Nova Gems in the game's shop. This allows you to upgrade your abilities and enhance your gameplay experience.