Monsters featured in Mighty Morphin Power Rangers (season 1)
- Babe Ruthless 32
- #32 - A Star is Born
- Baboo 1–60
- #1 - Day of the Dumpster
- #2 - High Five
- #3 - Teamwork
- #4 - A Pressing Engagement
- #5 - Different Drum
- #6 - Food Fight
- #7 - Big Sisters
- #8 - I, Eye Guy
- #9 - For Whom the Bell Trolls
- #10 - Happy Birthday, Zack
- #11 - No Clowning Around
- #12 - Power Ranger Punks
- #13 - Peace, Love and Woe
- #14 - Foul Play in the Sky
- #15 - Dark Warrior
- #16 - Switching Places
- #17 - Green With Evil Part I
- #18 - Green With Evil Part II
- #19 - Green With Evil Part III
- #20 - Green With Evil Part IV
- #21 - Green With Evil Part V
- #22 - The Trouble with Shellshock
- #23 - Itsy Bitsy Spider
- #24 - The Spit Flower
- #25 - Life’s a Masquerade
- #26 - Gung Ho!
- #27 - Wheel of Misfortune
- #28 - Island of Illusion Part I
- #29 - Island of Illusion Part II
- #30 - The Rockstar
- #31 - Calamity Kimberly
- #32 - A Star is Born
- #33 - The Yolk’s on You!
- #34 - The Green Candle Part I
- #35 - The Green Candle Part II
- #36 - Birds of a Feather
- #37 - Clean-Up Club
- #38 - A Bad Reflection on You
- #39 - Doomsday Part I
- #40 - Doomsday Part II
- #41 - A Pig Surprise
- #42 - Something Fishy
- #43 - Rita’s Seed of Evil
- #44 - Lions & Blizzards
- #45 - To Flea or Not to Flee
- #46 - Reign of the Jellyfish
- #47 - Crystal of Nightmares
- #48 - Plague of the Mantis
- #49 - Return of an Old Friend Part I
- #50 - Return of an Old Friend Part II
- #51 - Grumble Bee
- #52 - Two Heads Are Better than One
- #53 - Fowl Play
- #54 - Trick or Treat
- #55 - Second Chance
- #56 - On Fins and Needles
- #57 - Enter... the Lizzinator
- #58 - Football Season
- #59 - Mighty Morphin’ Mutants
- #60 - An Oyster Stew
- Bones 2
- #2 - High Five
- Cardiatron 36
- #36 - Birds of a Feather
- Chunky Chicken 7
- #7 - Big Sisters
- Commander Crayfish 59
- #59 - Mighty Morphin’ Mutants
- Cyclops 34–35
- #34 - The Green Candle Part I
- #35 - The Green Candle Part II
- Cyclopsis 39–40
- #39 - Doomsday Part I
- #40 - Doomsday Part II
- Dark Warrior 15
- #15 - Dark Warrior
- Dramole 49–50
- #49 - Return of an Old Friend Part I
- #50 - Return of an Old Friend Part II
- Eye Guy 8, 28
- #8 - I, Eye Guy
- #28 - Island of Illusion Part I
- Fang 33
- #33 - The Yolk’s on You!
- Fighting Flea 45
- #45 - To Flea or Not to Flee
- Finster 1–15, 17–18, 20–28, 31–36, 38–40, 45–53, 55–57, 59–60
- #1 - Day of the Dumpster
- #2 - High Five
- #3 - Teamwork
- #4 - A Pressing Engagement
- #5 - Different Drum
- #6 - Food Fight
- #7 - Big Sisters
- #8 - I, Eye Guy
- #9 - For Whom the Bell Trolls
- #10 - Happy Birthday, Zack
- #11 - No Clowning Around
- #12 - Power Ranger Punks
- #13 - Peace, Love and Woe
- #14 - Foul Play in the Sky
- #15 - Dark Warrior
- #17 - Green With Evil Part I
- #18 - Green With Evil Part II
- #20 - Green With Evil Part IV
- #21 - Green With Evil Part V
- #22 - The Trouble with Shellshock
- #23 - Itsy Bitsy Spider
- #24 - The Spit Flower
- #25 - Life’s a Masquerade
- #26 - Gung Ho!
- #27 - Wheel of Misfortune
- #28 - Island of Illusion Part I
- #31 - Calamity Kimberly
- #32 - A Star is Born
- #33 - The Yolk’s on You!
- #34 - The Green Candle Part I
- #35 - The Green Candle Part II
- #36 - Birds of a Feather
- #38 - A Bad Reflection on You
- #39 - Doomsday Part I
- #40 - Doomsday Part II
- #45 - To Flea or Not to Flee
- #46 - Reign of the Jellyfish
- #47 - Crystal of Nightmares
- #48 - Plague of the Mantis
- #49 - Return of an Old Friend Part I
- #50 - Return of an Old Friend Part II
- #51 - Grumble Bee
- #52 - Two Heads Are Better than One
- #53 - Fowl Play
- #55 - Second Chance
- #56 - On Fins and Needles
- #57 - Enter... the Lizzinator
- #59 - Mighty Morphin’ Mutants
- #60 - An Oyster Stew
- Frankenstein 25–26
- #25 - Life’s a Masquerade
- #26 - Gung Ho!
- Genie 16
- #16 - Switching Places
- Giant 2
- #2 - High Five
- Gnarly Gnome 5
- #5 - Different Drum
- Goatan 44
- #44 - Lions & Blizzards
- Goldar 1–4, 7–11, 14–60
- #1 - Day of the Dumpster
- #2 - High Five
- #3 - Teamwork
- #4 - A Pressing Engagement
- #7 - Big Sisters
- #8 - I, Eye Guy
- #9 - For Whom the Bell Trolls
- #10 - Happy Birthday, Zack
- #11 - No Clowning Around
- #14 - Foul Play in the Sky
- #15 - Dark Warrior
- #16 - Switching Places
- #17 - Green With Evil Part I
- #18 - Green With Evil Part II
- #19 - Green With Evil Part III
- #20 - Green With Evil Part IV
- #21 - Green With Evil Part V
- #22 - The Trouble with Shellshock
- #23 - Itsy Bitsy Spider
- #24 - The Spit Flower
- #25 - Life’s a Masquerade
- #26 - Gung Ho!
- #27 - Wheel of Misfortune
- #28 - Island of Illusion Part I
- #29 - Island of Illusion Part II
- #30 - The Rockstar
- #31 - Calamity Kimberly
- #32 - A Star is Born
- #33 - The Yolk’s on You!
- #34 - The Green Candle Part I
- #35 - The Green Candle Part II
- #36 - Birds of a Feather
- #37 - Clean-Up Club
- #38 - A Bad Reflection on You
- #39 - Doomsday Part I
- #40 - Doomsday Part II
- #41 - A Pig Surprise
- #42 - Something Fishy
- #43 - Rita’s Seed of Evil
- #44 - Lions & Blizzards
- #45 - To Flea or Not to Flee
- #46 - Reign of the Jellyfish
- #47 - Crystal of Nightmares
- #48 - Plague of the Mantis
- #49 - Return of an Old Friend Part I
- #50 - Return of an Old Friend Part II
- #51 - Grumble Bee
- #52 - Two Heads Are Better than One
- #53 - Fowl Play
- #54 - Trick or Treat
- #55 - Second Chance
- #56 - On Fins and Needles
- #57 - Enter... the Lizzinator
- #58 - Football Season
- #59 - Mighty Morphin’ Mutants
- #60 - An Oyster Stew
- Goo Fish 42
- #42 - Something Fishy
- Grumble Bee 51
- #51 - Grumble Bee
- Hatchasaurus 36
- #36 - Birds of a Feather
- Jellyfish 46
- #46 - Reign of the Jellyfish
- King Sphinx 4, 29
- #4 - A Pressing Engagement
- #29 - Island of Illusion Part II
- Knasty Knight 10, 29, 47
- #10 - Happy Birthday, Zack
- #29 - Island of Illusion Part II
- #47 - Crystal of Nightmares
- Lizzinator 57
- #57 - Enter... the Lizzinator
- Lokar 28–29, 39–40
- #28 - Island of Illusion Part I
- #29 - Island of Illusion Part II
- #39 - Doomsday Part I
- #40 - Doomsday Part II
- Madame Woe 13
- #13 - Peace, Love and Woe
- Mantis 48
- #48 - Plague of the Mantis
- Minotaur 3
- #3 - Teamwork
- Mr. Ticklesneezer 9
- #9 - For Whom the Bell Trolls
- Mutitus 28–29
- #28 - Island of Illusion Part I
- #29 - Island of Illusion Part II
- Octoplant 43
- #43 - Rita’s Seed of Evil
- Oysterizer 60
- #60 - An Oyster Stew
- Peckster 53
- #53 - Fowl Play
- Pineoctopus 11, 28
- #11 - No Clowning Around
- #28 - Island of Illusion Part I
- Polluticorn 37
- #37 - Clean-Up Club
- Pudgy Pig 6, 28, 41
- #6 - Food Fight
- #28 - Island of Illusion Part I
- #41 - A Pig Surprise
- Pumpkin Rapper 54
- #54 - Trick or Treat
- Putty Patrollers 1–5, 7–9, 11–20, 22–34, 37–38, 41–60
- #1 - Day of the Dumpster
- #2 - High Five
- #3 - Teamwork
- #4 - A Pressing Engagement
- #5 - Different Drum
- #7 - Big Sisters
- #8 - I, Eye Guy
- #9 - For Whom the Bell Trolls
- #11 - No Clowning Around
- #12 - Power Ranger Punks
- #13 - Peace, Love and Woe
- #14 - Foul Play in the Sky
- #15 - Dark Warrior
- #16 - Switching Places
- #17 - Green With Evil Part I
- #18 - Green With Evil Part II
- #19 - Green With Evil Part III
- #20 - Green With Evil Part IV
- #22 - The Trouble with Shellshock
- #23 - Itsy Bitsy Spider
- #24 - The Spit Flower
- #25 - Life’s a Masquerade
- #26 - Gung Ho!
- #27 - Wheel of Misfortune
- #28 - Island of Illusion Part I
- #29 - Island of Illusion Part II
- #30 - The Rockstar
- #31 - Calamity Kimberly
- #32 - A Star is Born
- #33 - The Yolk’s on You!
- #34 - The Green Candle Part I
- #37 - Clean-Up Club
- #38 - A Bad Reflection on You
- #41 - A Pig Surprise
- #42 - Something Fishy
- #43 - Rita’s Seed of Evil
- #44 - Lions & Blizzards
- #45 - To Flea or Not to Flee
- #46 - Reign of the Jellyfish
- #47 - Crystal of Nightmares
- #48 - Plague of the Mantis
- #49 - Return of an Old Friend Part I
- #50 - Return of an Old Friend Part II
- #51 - Grumble Bee
- #52 - Two Heads Are Better than One
- #53 - Fowl Play
- #54 - Trick or Treat
- #55 - Second Chance
- #56 - On Fins and Needles
- #57 - Enter... the Lizzinator
- #58 - Football Season
- #59 - Mighty Morphin’ Mutants
- #60 - An Oyster Stew
- Rhinoblaster 58
- #58 - Football Season
- Rita Repulsa 1–60
- #1 - Day of the Dumpster
- #2 - High Five
- #3 - Teamwork
- #4 - A Pressing Engagement
- #5 - Different Drum
- #6 - Food Fight
- #7 - Big Sisters
- #8 - I, Eye Guy
- #9 - For Whom the Bell Trolls
- #10 - Happy Birthday, Zack
- #11 - No Clowning Around
- #12 - Power Ranger Punks
- #13 - Peace, Love and Woe
- #14 - Foul Play in the Sky
- #15 - Dark Warrior
- #16 - Switching Places
- #17 - Green With Evil Part I
- #18 - Green With Evil Part II
- #19 - Green With Evil Part III
- #20 - Green With Evil Part IV
- #21 - Green With Evil Part V
- #22 - The Trouble with Shellshock
- #23 - Itsy Bitsy Spider
- #24 - The Spit Flower
- #25 - Life’s a Masquerade
- #26 - Gung Ho!
- #27 - Wheel of Misfortune
- #28 - Island of Illusion Part I
- #29 - Island of Illusion Part II
- #30 - The Rockstar
- #31 - Calamity Kimberly
- #32 - A Star is Born
- #33 - The Yolk’s on You!
- #34 - The Green Candle Part I
- #35 - The Green Candle Part II
- #36 - Birds of a Feather
- #37 - Clean-Up Club
- #38 - A Bad Reflection on You
- #39 - Doomsday Part I
- #40 - Doomsday Part II
- #41 - A Pig Surprise
- #42 - Something Fishy
- #43 - Rita’s Seed of Evil
- #44 - Lions & Blizzards
- #45 - To Flea or Not to Flee
- #46 - Reign of the Jellyfish
- #47 - Crystal of Nightmares
- #48 - Plague of the Mantis
- #49 - Return of an Old Friend Part I
- #50 - Return of an Old Friend Part II
- #51 - Grumble Bee
- #52 - Two Heads Are Better than One
- #53 - Fowl Play
- #54 - Trick or Treat
- #55 - Second Chance
- #56 - On Fins and Needles
- #57 - Enter... the Lizzinator
- #58 - Football Season
- #59 - Mighty Morphin’ Mutants
- #60 - An Oyster Stew
- Rockstar 30
- #30 - The Rockstar
- Samurai Fan Man 31, 47
- #31 - Calamity Kimberly
- #47 - Crystal of Nightmares
- Scorpina 19–21, 27–30, 32, 36–40, 43–47, 49–50, 54
- #19 - Green With Evil Part III
- #20 - Green With Evil Part IV
- #21 - Green With Evil Part V
- #27 - Wheel of Misfortune
- #28 - Island of Illusion Part I
- #29 - Island of Illusion Part II
- #30 - The Rockstar
- #32 - A Star is Born
- #36 - Birds of a Feather
- #37 - Clean-Up Club
- #38 - A Bad Reflection on You
- #39 - Doomsday Part I
- #40 - Doomsday Part II
- #43 - Rita’s Seed of Evil
- #44 - Lions & Blizzards
- #45 - To Flea or Not to Flee
- #46 - Reign of the Jellyfish
- #47 - Crystal of Nightmares
- #49 - Return of an Old Friend Part I
- #50 - Return of an Old Friend Part II
- #54 - Trick or Treat
- Shellshock 22, 28, 41
- #22 - The Trouble with Shellshock
- #28 - Island of Illusion Part I
- #41 - A Pig Surprise
- “Skeleton Warriors” 2
- #2 - High Five
- Slippery Shark 56
- #56 - On Fins and Needles
- Snizzard 14, 28–29
- #14 - Foul Play in the Sky
- #28 - Island of Illusion Part I
- #29 - Island of Illusion Part II
- Soccadillo 55
- #55 - Second Chance
- Spidertron 23
- #23 - Itsy Bitsy Spider
- Spit Flower 24
- #24 - The Spit Flower
- Squatt 1–60
- #1 - Day of the Dumpster
- #2 - High Five
- #3 - Teamwork
- #4 - A Pressing Engagement
- #5 - Different Drum
- #6 - Food Fight
- #7 - Big Sisters
- #8 - I, Eye Guy
- #9 - For Whom the Bell Trolls
- #10 - Happy Birthday, Zack
- #11 - No Clowning Around
- #12 - Power Ranger Punks
- #13 - Peace, Love and Woe
- #14 - Foul Play in the Sky
- #15 - Dark Warrior
- #16 - Switching Places
- #17 - Green With Evil Part I
- #18 - Green With Evil Part II
- #19 - Green With Evil Part III
- #20 - Green With Evil Part IV
- #21 - Green With Evil Part V
- #22 - The Trouble with Shellshock
- #23 - Itsy Bitsy Spider
- #24 - The Spit Flower
- #25 - Life’s a Masquerade
- #26 - Gung Ho!
- #27 - Wheel of Misfortune
- #28 - Island of Illusion Part I
- #29 - Island of Illusion Part II
- #30 - The Rockstar
- #31 - Calamity Kimberly
- #32 - A Star is Born
- #33 - The Yolk’s on You!
- #34 - The Green Candle Part I
- #35 - The Green Candle Part II
- #36 - Birds of a Feather
- #37 - Clean-Up Club
- #38 - A Bad Reflection on You
- #39 - Doomsday Part I
- #40 - Doomsday Part II
- #41 - A Pig Surprise
- #42 - Something Fishy
- #43 - Rita’s Seed of Evil
- #44 - Lions & Blizzards
- #45 - To Flea or Not to Flee
- #46 - Reign of the Jellyfish
- #47 - Crystal of Nightmares
- #48 - Plague of the Mantis
- #49 - Return of an Old Friend Part I
- #50 - Return of an Old Friend Part II
- #51 - Grumble Bee
- #52 - Two Heads Are Better than One
- #53 - Fowl Play
- #54 - Trick or Treat
- #55 - Second Chance
- #56 - On Fins and Needles
- #57 - Enter... the Lizzinator
- #58 - Football Season
- #59 - Mighty Morphin’ Mutants
- #60 - An Oyster Stew
- Super Putties 26, 43, 46
- #26 - Gung Ho!
- #43 - Rita’s Seed of Evil
- #46 - Reign of the Jellyfish
- Terror Toad 12, 29, 47
- #12 - Power Ranger Punks
- #29 - Island of Illusion Part II
- #47 - Crystal of Nightmares
- Twin Man 38
- #38 - A Bad Reflection on You
- Two-Headed Parrot 52
- #52 - Two Heads Are Better than One
- Weaveworm 32
- #32 - A Star is Born
Total: 59 monsters