Plain Graphics feels important in this game. i think the upgrade system is key to winning battles.
Clicking starts the action instantly, you use one-touch controls to build robots and upgrade cats.
You must strengthen warrior cats and build robots to fight monsters. The main mechanic is defending your tower against waves of enemies using one-touch controls.
Most players focus on robot construction early. You should use the one-touch mechanic to build defenses fast.
Q: What are the controls? A: One-touch controls to build robots and upgrade cats.
Q: What is the objective? A: Defend your tower against waves of monsters.
Q: What is one stated feature? A: One-touch gameplay mechanic.
Q: What is the main mechanic? A: Building robots and upgrading cats to fight.