Mega Heal Bomb

Mega Heal Bomb is an ability of the Scientist which is similar to the Sticky Explody Ball, but it does not hurt plants. When it explodes, it will heal any zombies in its radius by 50 health. Takes 15 seconds to recharge.

Description
''The Mega Heal Bomb is always popular at parties. Just roll it into a group of friends and watch their health replenish before your eyes!''