Một làn sóng dựa bắn chim game.
1) Fix : if you buy bullets and restart Game you dont lose buyed bullets
2) Fix : Now you cant see bullet trace when you dont have bullets
3) Fix : When change weapon ,dont show weapons that dont have bullets
7) Fix : weapons now unlocked in correct wave
8) Fix : Problem with bird count when you press pause
9) Add : Wave indicator
11) Add: Upgrades for weapons
12) Add: Bullets at shop for all guns
13) Add: Background sound
14) Add: Day and Night waves.
15) Add: Magnet
16) Add: Molotov