Monsters featured in Power Rangers Operation Overdrive

• Agrios
  #631 - Home and Away, #632 - Home and Away II, #633 - Way Back When
• Benglo
  #617 - Man of Mercury, #618 - Man of Mercury II, #619 - Behind the Scenes, #621 - It’s Hammer Time, #623 - One Gets Away, #624 - Once a Ranger, #625 - Once a Ranger II, #626 - One Fine Day, #627 - Ronny on Empty, #628 - Ronny on Empty II, #630 - Red Ranger Unplugged, #631 - Home and Away, #632 - Home and Away II, #633 - Way Back When
• Big Mouth Monster
  #612 - Both Sides Now, #633 - Way Back When
• Blothgaar
  #622 - Out of Luck
• Bombardo
  #610 - Pirate in Pink, #633 - Way Back When
• Bullox
  #615 - Face to Face, #616 - Face to Face II
• “Camera Monster”
  #614 - Lights, Camera, Dax
• Cheetar
  #617 - Man of Mercury, #618 - Man of Mercury II
• Chillers
  #605 - Kick into Overdrive, #607 - The Underwater World, #608 - Heart of Blue, #613 - Follow the Ranger, #615 - Face to Face, #618 - Man of Mercury II, #619 - Behind the Scenes, #620 - Just Like Me, #621 - It’s Hammer Time, #624 - Once a Ranger, #625 - Once a Ranger II, #627 - Ronny on Empty, #630 - Red Ranger Unplugged, #631 - Home and Away, #633 - Way Back When, #635 - Nothing to Lose, #636 - Crown and Punishment
• Crazar
  #630 - Red Ranger Unplugged, #632 - Home and Away II
• “Cybernetic Rex”
  #627 - Ronny on Empty, #628 - Ronny on Empty II
• Datum
  #629 - Things Not Said
• Dragonizer
  #613 - Follow the Ranger
• “Fearcats’s Machine”
  #631 - Home and Away, #633 - Way Back When
• “Fearcats’s Robot”
  #621 - It’s Hammer Time
• “Fearcats’s Robot Mark II”
  #623 - One Gets Away, #633 - Way Back When
• “Fearcats’s Robot Mark III”
  #626 - One Fine Day
• Flurious
  #605 - Kick into Overdrive, #606 - Kick into Overdrive II, #607 - The Underwater World, #608 - Heart of Blue, #609 - Weather or Not, #613 - Follow the Ranger, #615 - Face to Face, #616 - Face to Face II, #617 - Man of Mercury, #618 - Man of Mercury II, #619 - Behind the Scenes, #620 - Just Like Me, #621 - It’s Hammer Time, #623 - One Gets Away, #624 - Once a Ranger, #625 - Once a Ranger II, #626 - One Fine Day, #627 - Ronny on Empty, #628 - Ronny on Empty II, #630 - Red Ranger Unplugged, #631 - Home and Away, #632 - Home and Away II, #634 - Two Fallen Foes, #635 - Nothing to Lose, #636 - Crown and Punishment
• “Flurious’s Robot”
  #619 - Behind the Scenes, #633 - Way Back When
• Flurrex
  #636 - Crown and Punishment
• “Garbage Warrior”
  #629 - Things Not Said
• Generalissimo
  #624 - Once a Ranger
• Giant Sea Monster
  #606 - Kick into Overdrive II
• “Golem Warrior”
  #629 - Things Not Said
• Kamdor
  #608 - Heart of Blue, #610 - Pirate in Pink, #612 - Both Sides Now, #614 - Lights, Camera, Dax, #617 - Man of Mercury, #619 - Behind the Scenes, #621 - It’s Hammer Time, #623 - One Gets Away, #624 - Once a Ranger, #625 - Once a Ranger II, #628 - Ronny on Empty II, #629 - Things Not Said, #631 - Home and Away, #632 - Home and Away II, #633 - Way Back When, #634 - Two Fallen Foes
• Lava Lizards
  #605 - Kick into Overdrive, #606 - Kick into Overdrive II, #609 - Weather or Not, #611 - At All Cost, #613 - Follow the Ranger, #614 - Lights, Camera, Dax, #615 - Face to Face, #616 - Face to Face II, #620 - Just Like Me, #621 - It’s Hammer Time, #622 - Out of Luck, #623 - One Gets Away, #624 - Once a Ranger, #625 - Once a Ranger II, #627 - Ronny on Empty, #628 - Ronny on Empty II, #631 - Home and Away, #633 - Way Back When, #635 - Nothing to Lose
• Lavadactyls
  #615 - Face to Face, #616 - Face to Face II, #627 - Ronny on Empty, #633 - Way Back When
• Magmador
  #635 - Nothing to Lose
• Mig
  #616 - Face to Face II, #617 - Man of Mercury, #618 - Man of Mercury II, #619 - Behind the Scenes, #621 - It’s Hammer Time, #623 - One Gets Away, #624 - Once a Ranger, #625 - Once a Ranger II, #626 - One Fine Day, #627 - Ronny on Empty, #628 - Ronny on Empty II, #630 - Red Ranger Unplugged, #631 - Home and Away, #632 - Home and Away II, #633 - Way Back When
• Miratrix
  #608 - Heart of Blue, #610 - Pirate in Pink, #612 - Both Sides Now, #614 - Lights, Camera, Dax, #617 - Man of Mercury, #619 - Behind the Scenes, #621 - It’s Hammer Time, #623 - One Gets Away, #624 - Once a Ranger, #625 - Once a Ranger II, #627 - Ronny on Empty, #628 - Ronny on Empty II, #629 - Things Not Said, #631 - Home and Away, #632 - Home and Away II, #633 - Way Back When, #634 - Two Fallen Foes
• Miratrix Monster
  #634 - Two Fallen Foes
• Moltor
  #605 - Kick into Overdrive, #606 - Kick into Overdrive II, #607 - The Underwater World, #609 - Weather or Not, #611 - At All Cost, #613 - Follow the Ranger, #614 - Lights, Camera, Dax, #615 - Face to Face, #616 - Face to Face II, #620 - Just Like Me, #621 - It’s Hammer Time, #622 - Out of Luck, #623 - One Gets Away, #624 - Once a Ranger, #625 - Once a Ranger II, #627 - Ronny on Empty, #628 - Ronny on Empty II, #631 - Home and Away, #632 - Home and Away II, #633 - Way Back When, #634 - Two Fallen Foes, #635 - Nothing to Lose
• Moltor Zord
  #613 - Follow the Ranger
• “Prince Warrior”
  #629 - Things Not Said
• Skeltex
  #614 - Lights, Camera, Dax
• “Speaker Monster”
  #614 - Lights, Camera, Dax
• “Stone Warrior”
  #629 - Things Not Said, #633 - Way Back When
• Temple Monster
  #607 - The Underwater World
• Thrax
  #624 - Once a Ranger, #625 - Once a Ranger II
• Top Hat
  #621 - It’s Hammer Time
• Ultrog
  #608 - Heart of Blue, #633 - Way Back When
• Vulcon
  #611 - At All Cost
• Vulturus
  #624 - Once a Ranger, #625 - Once a Ranger II
• Vulturus Maximus
  #625 - Once a Ranger II
• Weather Monster
  #609 - Weather or Not
• “Winged Warrior”
  #629 - Things Not Said

Total: 46 monsters