Hey, not sure if this is intentional, but there doesn't seem to be any reason to ever release the wrecking ball. Once it gets to a certain size, you're basically invulnerable.
Wrecking Ball Princess
This is our bullet hell where you don't shoot back. Instead, you block bullets with your wrecking ball, which collects bad guys, too.
Use WASD/Arrows/Analog stick to move around. Use the mouse or a game pad button to release your wrecking ball.