
Ground Zero is an upgrade for the Monkey Ace, first released in the BTD5 Generation. It grants the Ace an ability to drop a nuke that deals high damage to all bloons on screen, or arbitrarily high number of targets in BTD6 Generation games. While the Ground Zero upgrade always follows the bomb-related upgrade path throughout all games, the Ground Zero upgrade follows from a different lineage of upgrades; BTD5 Generation games follow it from the Operation: Dart Storm upgrade, while BTD6 and BTDB2 follow it from the Bomber Ace upgrade.
The following pages correspond to the Ground Zero upgrade:
- Ground Zero (BTD5), the fourth upgrade of Path 2 for the Monkey Ace in BTD5.
- Ground Zero (BTD6), the fourth upgrade of Path 2 for the Monkey Ace in BTD6.
- Ground Zero (BTDB2), the fourth upgrade of Path 2 for the Monkey Ace in BTDB2, nearly identical to its BTD6 counterpart.
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