In this insane Arena-Shooter any upgrades you want to purchase cost your life. Luckily, you're a cat and therefore got 7 of them. Even luckier: you can steal the other cat's lifes by shooting them with your big-ass gun. 

The first upgrades come cheap. But watch out, the really good upgrades, that make you a flying bulletstorm of pain and agony for everyone around you, cost up to 5 lifes and even a badass life-stealer like you, can never hold more than 7. 

So power up your boots, distribute aerial-style headshots like a croupier of death and become the ultimate killing-machine. 
Only after you took all lifes of your enemies, you will be victorious.

But wait, there is more: To spice things up, you can just start again in a brand new, one of a kind arena, you have never seen before.

PS. Press TAB to activate the store! (We seem to have missed to mention this. We scusi :'D)