These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Narm: Everyone just so happens to die JUST as Kaim gets there... A bit sad at first, but when such horrible time is so excessive (and so very dramatic) it starts getting funny. Gongora claims early on that immortality attracts death; even though he's lying it looks like that lie was closer to the truth than he intended.
Gongora brings an entire slaughterhouse worth of ham to the game: his expressions and high-pitched laugh while he gesticulates wildly during his mud-golem summoning spell is easily one of the most narm-tastic moments of the game.
That One Boss: Grilgan, Bogimoray, and the battle with the Numaran soldiers over Cooke and Mack's flowers are three good examples just from the first disc alone.
The Old Sorceress in Disc 2 can be troublesome if you aren't prepared to ignore going for the elemental weaknesses because her Scream ability randomly changes their weakness.
Living Ice in Disc 3. Your party consists of only Jansen, Ming, Cooke, and Mack. Living Ice's All-Aquara hits for about 750+ to the entire party and it can easily kill you if you aren't prepared.
It eventually puts up a reflect and only Mack can really attack it. Since you get Mack and Cooke back at the scene with the fight, you can't level him up so if he's not strong enough, you're screwed
Ancient Fiend in Disc 4. Whatever you do, do not kill both of the Keystones or you will be asking for a world of pain.
Getting three stars on The Ring Master. Prepare to go into battle excessively prepared if you want a CHANCE of beating him.
That One Level: The sewers towards the end of disc 3. Have fun running round in circles and doubling back while you attempt to figure out if you're actually supposed to be going in that direction and being attacked by Goddamn Bats every 20 steps or so. There's a fair bit of loot to find but eventually you will give up searching for that and just be screaming "For the love of god where's the damn exit."
The Woobie: Several characters have their moments, but none more than Sarah and Kaim.
Woolseyism: Evident if you understand some Japanese and play with that audio track, much of Jansen's dialogue has changed completely and his voice acting is the best in the game.
The English lines were recorded first, making this an inversion from an English speaker's perspective.