S.I.L.V.E.R.F.I.S.H (Super Idiotic Lying Vomiting that Eats Rowdy Fish In Sauce Hellmachine) is a M.O.A.B class bloon that can do lots of stuff. It can turn into a rock, which makes it slower but also gives it a shield (if the rock breaks, which is after the power of 100 darts worth of power or more, it can't use it again). It also has a 1 in 10 chance of spawning a red bloon at the start of the course when hit. It moves at the speed of a M.O.A.B and has the health of 80 red bloons. It can appear randomly on rounds 60 and up, yet it has double the chance of randomly spawning if the stage it is in has any rocks in it. If it gets into the end of the course, it will take away 10 lives. It looks like a small gray M.O.A.B with a Silverfish from Minecraft stamped onto it.