Grow ball!

1. Build your skills by merge materials.
Get sweet rewards after defeat enemies with stronger balls.
-Combine power to inflict powerful damage on your enemies
-merge speed to speed up the ball
-merge shots to increase your rate of fire.
-merge HP to improve your stamina.

2. Level up your skills and use them on your enemies.
You can clear the stage more easily.
-Use lightning to attack multiple enemies
-Use random firing to fire many bullets at once.
-Use your rock skills to pierce your enemies.
-Use your stop skills to stop your enemies.

*No internet. No wifi.