Dark Beacon

The Dark Beacon is a special beacon made by the Dark Star in the final room. It disables the abilities of the heroes, as well as contains any corpses of the fallen heroes for Necrola to turn into Killer Robots, and for Flowey the Flower to absorb the SOULs from.

Effects

 * The following characters are unaffected, due to lacking abilities:
 * Jelo
 * Red Guy
 * Duck
 * Roach
 * Beng
 * Maggie
 * Script has lost his stepping power.
 * Barbarian King cannot use Iron Fist.
 * Lucas cannot summon Cute Fishron.
 * Super Monkey is depleted of his spikeballs.
 * Sans the Skeleton cannot summon Gaster Blasters.
 * Star's wand has low energy, causing her spells to be duds. She also can't use her Dimensional Scissors.
 * Marco becomes far clumsier.
 * Voltaire cannot use Plant Food. In addition, her electric powers are weakened.
 * Rosalina cannot teleport.
 * Papyrus' bone attacks are disabled.
 * Tom the Toxic Pea cannot use toxins
 * Mewtwo's powers are weakened.
 * Marcy is now a human.
 * Angris cannot be angered.
 * President Toilet cannot be cloned.
 * The Mysterious Figure is also unaffected by the beacon, but it's because Dark Star wasn't expecting him to return.

Trivia

 * The design is unknown, but Moon Snail is considering making it a black version of the Bloon Beacon in Bloons Monkey City and Bloons Super Monkey 2.