MOAB Graveyard is a special mission in Bloons Monkey City. In this mission, you have to pop MOABs, BFBs, and ZOMGs. The player receives $30,000 to start. This mission contains three rounds.
In the background of the MOAB Graveyard's track, there are three MOABs, the tail of one BFB, one ZOMG, a skeleton of what appears to be Vortex, and a skeleton of an unknown blimp, possibly Bloonarius or the gray hot air bloon from Hot Air Bloon. It may have also been hinting the B.A.D introduced in BTD6, although the blimp in the track is much larger compared to the nearby ZOMG than the BAD.
Waves Description[]
Round 1: 10 MOABs (heavily spaced, appearing faster later in the round). RBE: 6160
Round 2: 6 BFBs (heavily spaced, appearing faster later in the round). RBE: 18984
A total of 3904 red bloons appear across all three waves.
23180 non-MOAB class bloons are popped throughout all three waves.
The supposed MOAB frame in the top right could be an Easter egg suggesting an even stronger MOAB Class Bloon. Not only is it much larger than a Z.O.M.G. but it appears that it is much older with the fragments being gray and much more tattered than the M.O.A.B. or the Z.O.M.G. frame or maybe this MOAB class bloon is gray in color.
It is possible that the blimp might be a reference to the B.A.D.'s later appearance in Bloons TD 6.
One single Spectre in the middle under a 2/1 Village can handle every mini-wave of one MOAB each.
Two Spectres in the middle under a 2/1 Village can handle all mini-waves of MOAB-class bloons.
A MOAB Frame similar to the one in the top right can be found in the track MOAB Desert in BTD5.