Animals Clicker uses tapping on cards as its main control to earn coins for upgrades. i found the clicking a bit repetitive but the upgrades work fine.
Clicking on cards starts the whole process of getting coins, and you tap the cards to earn them.
The game lets you tap on animal cards to reveal new creatures and get coins to upgrade stuff. The core feature is tapping animal cards to see what pops up next, earning coins to upgrade stuff.
Quick tip, upgrading your click power is better then just tapping randomly. Most players find timing your clicks right helps maximize coins.
Q: What are the controls? A: Tapping on cards.
Q: What is the objective? A: Earn coins and upgrade stuff.
Q: What is a stated feature? A: Upgrading click power and cash flow.
Q: What is the main mechanic? A: Tapping cards to get coins.