"Goblin Ball"
*The Green Goblin is back! And thanks to an ordering mix-up at the Terrible Tinkerer's machine shop, the Green Goblin is a thousand time more dangerous than ever with an Anti-Mater Pumpkin Bomb! Now...unless Spider-Man can put an end to the Goblin's crime spree, every time the crazy villain reaches into his bag of tricks, he might throw a pitch that will be New York City's last!
"Rent Strike"
Then, Spidey tangles with the malevolent mistress of mayhem, Madam Masque! *Source: marvel.com
The back-up story "Rent Strike" is reprinted in Marvel Universe Ultimate Spider-Man Comic Reader #2.