The Incredible Hulk Vol. 1 (1962-1999) #121

Plot

Hulk is leaping over Florida when he is accidentally struck by a missile causing him to crash land in the swamp; Coming across an old U.S. government cabin, Hulk destroys some barrels of radioactive waste which creates a muck monster soon to be known as the Glob; The army is in the marsh hunting the Hulk when the Glob captures Betty, thinking she is the woman he loved back in the days when he was a human; The Hulk and the Glob battle but the muck monster ends up giving his life in helping the Hulk save Betty from anti-radioactive goop that Ross has poured into the swamp in order to kill both the Glob and the Hulk.