Zombie Time

This game is a 2D shooter game where you need to hold out for 15 rounds. The rounds follow each other. But in case of defeat, you will have to start from the first round. The difficulty increases with each new round. 8 unique opponents and 3 Bosses are waiting for you on the way to victory.
You have 2 characters to choose from, upgraded weapons and skills.
But be very careful - staying alive is not so easy anymore.