Abraham Lincoln's Penny

"The magic coin that gives the ruler of Mars his immortality."

- BATTD description

 is an exclusive Martian trade Trinket in Bloons Adventure Time TD. Once the game over condition is met, the equipped character will be sold for $0 immediately, all bloons (including BADs) onscreen will be destroyed, and restores all lives immediately after. It can only be used once, and therefore does not stack with other pennies. The penny does not activate if the equipped character is not already placed.

Description
It is a penny with Abraham Lincoln's head on it facing up. The "Go" in the text "In God We Trust" and last two digits of the year are smudged out.

Strategy
This trinket can help the player beat Round 75 on Impoppable Difficulty easily by allowing a leak of the BAD (or its children or bloons spawned from Zombie Bloon gravestones) without losing the game, even if the player's defenses are not strong enough to pop it (especially its Fortified variant) by the time it arrives.

If the player doesn't want to wait for a game over, they can get Finn with the Bound by Word upgrade or Princess Bubblegum with the Royal Promise upgrade, and then sell one of them (repeat selling as necessary but keep the penny user on the battlefield) to get killed instantly, forcing the penny to activate.

Trivia

 * It acts similarly to the Dimension Disruptor power, which destroys all bloons (including BADs) in the current round upon losing the last life and restores all lives immediately after.