It explodes extremely violently if hit with water-based attacks, dealing 30HP in a radius a bit larger than a Big One, and tending to blind towers like the S.O.D.I.U.M., too. However, it takes x600 damage from water-based attacks. The C.A.E.S.I.U.M. contains 4 R.U.B.I.D.I.U.M.s, 9 D.D.T.s, 1 Z.O.M.G., 6 B.F.B.s, 6 M.O.A.B.s, 8 Thick Ceramic Bloons, and 7 S.O.D.I.U.M.s.