It is actually called Massive Ordinary Air Blimp
and there I assumed it was "mother of all balloons"
2023-06-26 The text before starting round 38 in BTD3 says "Ornary" (which is only in the dictionary as a variant spelling of ornery, I will add). I do not remember any occurrences of "Ordinary". Do you have a location? 71.182.132.69 22:50, 26 June 2023 (UTC)
Many Missing Appearances of MOABs in the BTD6 Alternate Bloons Rounds Appearances section[]
The wiki pages of the other bloon types list many more appearances of MOABs that are not listed on the MOAB page in the BTD6 Alternate Bloons Rounds Appearances. Those additional listings on those other bloon pages are as follows:
Round 54: 35 Black Regrowth, 1 M.O.A.B, 1 B.F.B. Round 57: 25 Ceramic, 2 Fortified M.O.A.B, 1 B.F.B. Round 62: 250 Purple, 15 Fortified Lead Camo Regrowth, 5 Fortified M.O.A.B, 2 B.F.B. Round 64: 6 Fortified M.O.A.B, 2 B.F.B. Round 65: 70 Rainbow, 50 Fortified Ceramic, 3 Fortified M.O.A.B, 3 B.F.B. Round 68: 4 M.O.A.B, 1 Fortified B.F.B. Round 73: 8 Fortified M.O.A.B, 2 Fortified B.F.B. Round 75: 50 Lead, 14 Fortified Lead, 4 Fortified M.O.A.B, 4 B.F.B, 4 Fortified B.F.B. Round 77: 11 Fortified M.O.A.B, 5 Fortified B.F.B. Round 81: 15 B.F.B, 20 Fortified M.O.A.B Round 84: 50 M.O.A.B, 15 Fortified B.F.B. Round 88: 15 Fortified M.O.A.B, 12 B.F.B, 3 D.D.T. Round 89: 15 Fortified M.O.A.B, 12 Fortified B.F.B. Round 92: 50 Fortified M.O.A.B, 4 D.D.T, 4 Z.O.M.G. Round 95: 500 Purple Camo Regrowth, 30 Fortified M.O.A.B, 30 D.D.T. Round 96: 20 Fortified M.O.A.B, 20 Fortified B.F.B, 10 D.D.T, 11 Z.O.M.G. Round 99: 30 M.O.A.B., 9 Fortified D.D.T., 1 B.A.D.
I have not verified these, so I hesitate to edit. And my own copy/pasting job above should also be rechecked. 71.182.132.69 23:11, 26 June 2023 (UTC)