☀️ Sun points get added to the progress bar every time you buy animals and decorations. Once it's full, you move up one zoo level. Here's what leveling up gives you:
✅ Bonus coins for beating match-3 levels. You get this bonus every time you level up your zoo.
✅ Access to new areas. Please note that new areas only unlock at selected levels. Don't worry if you didn't unlock a new area when you leveled up—keep playing and filling the progress bar.