Sources:
Creeper - https://minecraft.fandom.com/es/wiki/Creeper
James P. Sullivan - https://commons.wikimedia.org/wiki/Category:James_P._Sullivan
Rancor - https://www.starwars.com/databank/rancor
Clover - https://cloverfield.fandom.com/wiki/Cloverfield_Monster
Exogorth - https://starwars.fandom.com/wiki/Exogorth
Brethren Moons - https://villains.fandom.com/wiki/Brother_Moons
Yog-Sothoth - https://aliens.fandom.com/wiki/Yog-Sothoth
Eternamax Eternatus - https://bulbapedia.bulbagarden.net/wiki/Eternatus_(Pok%C3%A9mon)
Godzilla (2019) - https://wikizilla.org/wiki/Godzilla
Godzilla (1954) - https://wikizilla.org/wiki/Godzilla_(First_Generation)
Gremlin - https://gremlins.fandom.com/wiki/Gremlins_(species)
Warrior Bug - https://starshiptroopers.fandom.com/wiki/Warrior_Bug
Xenomorph XX121 - https://aliens.fandom.com/wiki/Xenomorph
Graboid - https://tremors.fandom.com/wiki/Graboid
Durin's Bane "Balrog" - https://tolkiens-middleearth-legendarium.fandom.com/wiki/Durin%27s_Bane
King Kong - https://wikizilla.org/wiki/King_Kong
Stay Puft Marshmallow Man - https://ghostbusters.fandom.com/wiki/Stay_Puft_Marshmallow_Man
Gamera - https://wikizilla.org/wiki/Gamera
Colossal Titan - https://attackontitan.fandom.com/wiki/Colossal_Titan_(Anime)
Mothra - https://wikizilla.org/wiki/Mothra_(First_Generation)
King Ghidorah - https://wikizilla.org/wiki/King_Ghidorah_(Showa)
Sandworm - https://neoencyclopedia.fandom.com/wiki/Sandworm_(Dune) - https://en.wikipedia.org/wiki/Sandworm_(Dune)
Slattern - https://pacificrim.fandom.com/wiki/Slattern_(Kaiju)
Sackboy - https://littlebigplanet.fandom.com/wiki/Sackboy
Standard Headcrab - https://half-life.fandom.com/wiki/Standard_Headcrab#:~:text=Headcrabs%20are%20fairly%20small%20creatures,stubby%20ones%20in%20the%20back.
Murlocs - https://wowpedia.fandom.com/wiki/Murloc
King Bowser Koopa - https://characterprofile.fandom.com/wiki/Bowser - https://www.bowsershrine.com/bowserprofile.php - https://www.sociosite.net/age-height-weight-of-celebrities/bowser - https://gamerant.com/super-mario-how-tall-is-bowser/#bowser---10-ft-2-in
Corpser - https://gears-of-war.fandom.com/wiki/Corpser - https://gearsofwar.fandom.com/wiki/Corpser
Super mutant behemoth - https://fallout.fandom.com/wiki/Super_mutant_(Fallout_3)#Super_mutant_behemoth
Goliath "Stage 3" - https://evolve.fandom.com/wiki/Goliath
Darkside - https://www.gamesradar.com/giant-killers-biggest-bosses-gaming/#:~:text=Darkside%20(Kingdom%20Hearts)&text=About%2030%20feet%20tall%3B%20think,hulking%2C%20tentacle%2Dheaded%20mass.
Lambent Brumak - https://gearsofwar.fandom.com/wiki/Lambent_Brumak
Colossus III - (in game) https://teamico.fandom.com/wiki/Colossus_III#Final_
Deathwing - https://twitter.com/Warcraft/status/823540193433186305
The Savior - https://devilmaycry.fandom.com/wiki/The_Savior#Trivia
Gravemind - https://halo.fandom.com/wiki/Gravemind
Leviathan (Resistance) - https://resistance.fandom.com/wiki/Leviathan
Sea Dragon Leviathan - https://subnautica.fandom.com/wiki/Sea_Dragon_Leviathan
Titan "The Archaean" - https://finalfantasy.fandom.com/wiki/Titan_(Final_Fantasy_XV)
Riftworm - https://gearsofwar.fandom.com/wiki/Riftworm
Shah Dalamadur - https://monsterhunter.fandom.com/wiki/Shah_Dalamadur
Cronos - https://godofwar.fandom.com/wiki/Cronos#Trivia
Kalros - https://www.deviantart.com/euderion/art/Mass-Effect-Size-Comparison-with-Kalros-601169838#:~:text=So%20Kalros%20must%20be%20around%203%20km%20long.
Adamantoise - https://finalfantasy.fandom.com/wiki/Adamantoise_(Final_Fantasy_XV)
Leviathan (Mass Effect 3) - https://www.deviantart.com/euderion/art/Mass-Effect-Starship-Size-Chart-Comparison-426438202
Leviathan (Starcraft) - https://starcraft.fandom.com/wiki/Leviathan
Aldoron - https://roleplayingblog414201607.wordpress.com/2020/04/05/the-size-of-aldoronfairy-tail/
Jörmungandr - https://hero.fandom.com/wiki/J%C3%B6rmungandr_(God_of_War)
Sahaquiel - https://vsbattles.fandom.com/wiki/User_blog:Matthew_Schroeder/Sahaquiel_Feats_(OBD_Calculations) - https://www.reddit.com/r/megalophobia/comments/eqtgtk/the_size_of_the_angels_in_evangelion_the_purple/
Kirby - https://kirby.fandom.com/wiki/Kirby#Appearance
Zunesha - https://onepiece.fandom.com/wiki/Zunesha
Totoro - https://ja.wikipedia.org/wiki/%E3%81%A8%E3%81%AA%E3%82%8A%E3%81%AE%E3%83%88%E3%83%88%E3%83%AD
Eren’s Founding Titan - https://epicstream.com/article/how-big-is-erens-founding-titan
Vacuumon - https://ultra.fandom.com/wiki/Vacuumon
Ego the Living Planet - https://marvel.fandom.com/wiki/Egros_(Earth-616)
Demogorgon - https://strangerthings.fandom.com/wiki/The_Demogorgon
The Mind Flayer - https://twitter.com/stranger_things/status/1544048405336522752?s=21&t=Z8x9LjLb411KwzMWzHVHXg
Snake King - https://toriko.fandom.com/wiki/Mother_Snake
Kronos - https://clash-of-the-titans.fandom.com/wiki/Kronos
Cthulhu - https://en.wikipedia.org/wiki/Cthulhu#Description
Siren Head - https://trevorhenderson.fandom.com/wiki/Siren_Head
Kraken (Clash of the Titans) - https://kaijuwikia.fandom.com/wiki/Kraken_(Clash_of_the_Titans)
Joltik (Pokémon) - https://bulbapedia.bulbagarden.net/wiki/Joltik_(Pok%C3%A9mon)