Collection Event (BATTD)

Challenge maps have difficulty modifiers from other maps instead of their usual modifiers. Any map except Candy Graveyard, Cursed Mirrors, Fire Trap, Heirophant's Forest, or Infinity can appear in the event, even maps exclusive to premium Adventures. The modifiers are chosen at random from one of the following maps:

Special Gift

The Special Gift is an object that appears on the path on challenge maps. It will destroy the first non-MOAB-Class Bloon on contact, but if left intact, the gift will open and grant the player an additional reward upon completing the challenge map.

Rewards

Prizes

The rewards of each square on the grid is predetermined, but the order they are unlocked in is random. Opening all 24 of the prizes rewards one Legendary wish orb on top of the prize for the last square revealed.

// equipment can be a weapon, trinket, or ally, not sure if it includes powers or not

Epic equipment	Super Rare equipment	Super Rare equipment	Rare equipment	Rare equipment	Uncommon weapon
Uncommon trinket	Uncommon ally	Common equipment	Uncommon weapon	Common trinket	Common ally
×1	×1	×1	100	50	10
1,000	500	100	200	100	20

Special Gift

Difficulty	40%	40%	5%	15%
Normal	10	×1	×1	Random character resource ×1
Hard	15	×1	×1	Random character resource ×2
Extreme	20	×1	×1	Random character resource ×4
Impoppable	25	×1	×1	Random character resource ×8