Tank Rectangle

This is a simple & retro Tank shotting game. what you need is moving, aiming and shotting.Currently we only have 1 map, no boss or plot. The only task is try to survive...Player can equip 1 ability card at start menu.Then we will get 4 random cards during level up, Player need select 1 to power up attribute or ability.Enemy also can level up via time goes, level up attribute is randomly. Player can select power up direction accordingly...Enemy can explode once player nearby.We also have environment system, you need judge enemy's position by sound during night.Player can press E button once collect more than 1 ability card.The ability also could be power up by mutiply cards.