- Bizarro Episode: Episode 37 "Flower" and Episode 40 "Dream" are full of nonsensical imagery, weird audio cues, strange visuals, inspiration traditional Japanese theater and poetry, and have surreal monsters (Alien Manon and Bakugon). Of course, they're both written and directed by Akio Jissoji, the master of weird Ultraman episodes.
- Broken Base: Depending on who you ask, the 4Kids Entertainment dub is either So Bad, It's Good or So Bad Its Horrible.
- Complete Monster:
- Gatanozoa ("Evil God") is the ancient and vile Master of Darkness. Gatanozoa sought to plunge the world into darkness, despair, and desolation. Using its herald Gijera to pave the way, Gatanozoa and his Zoiger army would wipe ancient humanity and their civilization from the face of the Earth before ending their age of darkness by returning to slumber in R'lyeh until life repopulated. In the modern day, Gatanozoa would stir from his hibernation, once more attempting to have Gijera addict humanity to its flowers until they began to destroy themselves and become easy prey. While Gijera would fail, Gatanozoa would unleash his Zoiger to ravage the world, reducing its major cities to blazing ruin and decimating GUTS while the monster would slaughter the Japanese branch's crew with his darkness. Confronted by Tiga, Gatanozoa would draw the battle out, strangling and pummeling the hero until finally turning him to stone, casting him into the depths of the sea with Daigo still conscious and aware inside. Even in death, Gatanozoa's hatred and rage would later allow the Dark Giant Kamila to transform into Demonzoa and attempt to destroy his killer.
- Giranbo ("Different Dimension People"), from episode 8 "On Halloween Night", is an evil extradimensional witch who believes dreams are wasted on the young. Arriving in our dimension every Halloween for as far back as GUTS's records can remember, she hands out tainted candy to a town's children which allow her to brainwash and abduct them. Once ferried off to her dimension, Giranbo devours their dreams until they're an empty shells, and then callously throws what remains away in her Dream Graveyard. When Daigo discovers her, she traps him and forces him to watch her devour a young boy's dreams. Finding the dreams of adults unappetizing, Giranbo instead opts to leave the hero to a slow death by suffocation while she welcomes her latest feast to her dimension. When Tiga foils her plans, Giranbo attempts to kill the hero, gleefully laughing as she and her clones gang up and beat him down. While a mere Monster of the Week, Giranbo condemned countless children to a horrible fate over her very long life who even her demise doesn't bring back.
- Ear Worm: The opening theme ("Take Me Higher" by V6) will stay in your brains for YEARS!
- Ensemble Dark Horse:
- Golza, full stop. He's pretty much the Gomora of the Heisei Ultra kaiju. But among the less frequently appearing monsters, Melba and the Kyrieloids are pretty popular.
- Gatanozoa. Being a HP Lovecraft creation who fights Ultraman gets you places.
- Keigo Masaki/Evil Tiga and Gardi are considered to be among the most memorable characters in the series.
- Harsher in Hindsight: The guest character of episode 15 is the real-life pro motorcyclist Takuma Aoki, who died from Gazort II's attack. About two years later in 1998, the actual man himself caught in an accident that caused paralysis on his lower waist.
- Hilarious in Hindsight: The plot of episode 10 ended up getting used in The Simpsons Movie, complete with a sinkhole, except with the EPA in place of a Kaiju.
- One of August Derleth's Cthulhu Mythos stories featured gigantic aliens able to fire lasers from their hands called the Star Warriors of Orion, which has been noted several times on this wiki as being suspiciously similar to the Ultra Series. The inclusion of Lovecraftian elements in Tiga (Rl'yeh, Ghatanothoa, Lloigor/Zoiger) bring it full circle.
- Macekre: The 4Kids dub, although some find it hilarious.
- Memetic Mutation: Japanizing Beam!Explanation
- Most Wonderful Sound: The fanfare that plays when Tiga shows up.
- Narm Charm: The 4Kids dub for those who don't find it an insult to the original show. Full of such lines as:Munakata: (reacting to the appearance of Melba) It looks like my mother-in-law.
- Win Back the Crowd: For 15 years, the Ultra Series was on a semi-hiatus, with no full series being produced (mostly just cheap movies and specials) and Tsuburaya Productions in bad shape (at one point, they only had three employees). Fortunately Ultraman Tiga ended the small-screen absence and revolutionized the franchise, making it a smash hit with viewers and proving that Ultraman could still be a force to be reckoned with as the 21st century came around the corner.
YMMV / Ultraman Tiga