Click the cat to change elements, it will follow your mouse, and you have to kill the square thingies. The big also ones have more health, and they are slower. There are 2 types of them, being the semi-boss, and the boss.
Useful stuff Upgrade priority tier list: A - More coins, Bigger magnet, Durability. B - Spawn rate, Bosses, Faster regen. C - One shot D - Longer immunity Attack description Fire - Shoots a spray of particles dealing tons of damage Best for early-game use. Works on bosses Water - Shoots a slow focused beam Best for early-game use. Not much damage on bosses Earth - Spawns an explosive attack killing everything Best for tons of enemies. Bad with bosses Air - Shoots out a fast focused beam Best for any-time. Pushes away enemies ( not bosses ) Light - Slow fire rate, fast bullets Best for bosses, terrible on enemies Tech - Teleports, killing anything in its path Best for anything. Lots of damage, one shots enemies Boss types Semi-boss - 50 hp - Less damage from enemies - Shorter lifespan - Weakness = Light - Reward = 30 coins Boss - 300 hp - More damage from enemies for balance - Behemoth - Weakness = Technology - Reward = 75 coins Upgrade description More durability - Increase i-frames between hits, so you take less overall Faster regen - Decrease the cooldown for gaining health back, and heal faster One-shot - When hit, enemies stop all actions and die