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MMB4 the cleaners

"The Cleaners" are coming...

This event ran from 12 PM PST 24 Febuary 2016 to 12 PM PST 03 March 2016. During that time, players could attack a series of special Bosses to earn rewards. Using Gold Bullets and Green Bullets against these bosses would often grant a reward of some number of Green Hazmats.

Each level of the boss consisted of a number of rounds, with each round having 1-4 enemies to fight. The final round was always against level 131.

Stage 1 = Squeegee Heavy Weapons - Dobie Assassin - Scrubber Heavy Weapons

Stage 2 = Bagboy Assassin - Hauler Heavy Weapons

Stage 3 = Gutter Assassin

Stage 4 = Twinkle Heavy Weapons

Stage 5 = Spectre Heavy Weapons

Stage 6 (Only every 5 levels) = Random Boss


When the event concluded, prizes were awarded to players depending on the number of Green Hazmats they collected:

Note that you also got all the awards for lower numbers, too.

In addition, players were ranked by contribution points. The highest-ranking players got additional rewards:

Note that you did not also get the awards for lower placements.

In addition to that, there were rewards for certain boss levels:

Finally, each level of the boss had a huge list of possible drops, that basically included every item that can be dropped by any other boss in the game plus a few new items:


While the event was active, spending Stamina and Energy would sometimes result in some of the following rewards:

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