Model:
Blackberry 83XX Curve Family (320x240 pixels (QVGA) with 65K colours): Blackberry 8300, Blackberry 8310, Blackberry 8320, Blackberry 8330, Blackberry 8350i /Blackberry 88XX Family (320x240 pixels (QVGA) with 65K colours): Blackberry 8800, Blackberry 8820, Blackberry 8830 /Blackberry 87XX Electron Family(large 320x240 pixels (QVGA) and 65K colours depth): Blackberry 8700, Blackberry 8700c, Blackberry 8700f, Blackberry 8700g, Blackberry 8700r, Blackberry 8700v, Blackberry 8703e, Blackberry 8707, Blackberry 8707g, Blackberry 8707h, Blackberry 8707v

Instructions:
Place the defence towers at strategic locations to avert the invasion. Press key 1 to place the towers. You can also upgrade and move the towers during the game. Select the tower and press key 5 to upgrade, sell or move the tower. To let the battle commence, press key 7. Press 0 to activate the help menu

Phím 1 để xây thành, phím 5 để lựa chọn nâng cấp, bán hoặc dịch chuyển thành, phím 7 để bắt đầu cuộc chiến, phím 0 để mở trợ giúp