Deathball

Deathballs are evil devices in the Masterforce portion of Generation 1

Mega has balls.

Mega developed a powerful explosive which she (in a fit of whimsy, and probably to please Giga) cast in the shape of golf balls.

Fiction

Masterforce cartoon

MF ep 11 Giga tests the deathballs, by hitting one off a makeshit tee stand on their deserted island. It destroys an observation plane sent to investigate their recently surfaced real estate. Giga appears grim and expressionless, which probably mean's he's jumping up and down and doing shappy sumersaults inside.

Pleased witht he Deathballs performance, Mega gives them to Hydra and Buster. They equip their plans to eother fire Deathbalsl at high speed, or scatter them in a barrage, and use them in their plan to flush out the recently-awakened Autobot Godmaster Ginrai.

From Teletraan I: The Transformers Wiki, a Wikia wiki.