A copy of Kidz Water Hydrators #1 (Marvel, 1999 Series) was inserted between pages of this issue (but not stapled or otherwise bound in).
This issue has variants:
Spider-Girl [May Parker]; Peter Parker [Spider-Man]; Mary Jane Watson-Parker; Phil Urich [Green Goblin]; Jimmy Yama; Courtney Duran; Moose Mansfield; Killer-Watt (introduction); Darkdevil; Stinger