There are also achievements and challenges that you can complete along with Quests and a Pass that you can purchase for some ...

On the one hand, PART of the Roblox’s SpongeBob Tower Defense Season 3 pass is free. There are items/rewards you can get just by playing the game. No payment is required.

Players within the existing SpongeBob Tower Defense game in Roblox can collect cans of the new Pineapple Paradise flavor as an in-game reward.