Web of Spider-Man #67 (1990)
“With Friends Like These!”
Writers: Gerry Conway & Ben Trovato
Artist: Alex Saviuk
Spider-Man asks Green Goblin (Norman Osborn) what he’s up to, and Green Goblin says he wants to put on the suit again but be a good guy. Spider-Man convinces him that with a wife and son it’s not such a good idea. Harry doesn’t reveal it to Spider-Man, but he remembers now that Spider-Man is Peter.
Tombstone stumbles back to Hammerhead’s headquarters and he’s now indestructible. Bullets have no effect on him and he has super strength.