I met this character in the BTAS cartoon. He was sorely missing from my bat-villains gallery.
I started from the MU Thing. Replaced the legs with SHS Thing and hands from MI Sandman. Sculpts with plasti-roc clay then pro-create putty and finally hot glue for the mudslide effects. Head sculpted from scratch. Painted with two brown shades and a black wash. Eyes painted with brass color,teeth in ocre brown.