The Amazing Spider-Man Vol. 1 (1963-1998) #167

Plot

Jameson attacks Spidey with his new Spider-Slayer robot; Trying to dig up info that Jonah supposedly has on Spider-Man, Spidey runs across the strange density manipulating powers of Will-o'-the-Wisp; When the Spider-Slayer arrives on the scene, Spidey finds himself facing two baddies at once.