The game that got brought to the United States, as Revelations: The Demon Slayer, starts out with the Main Character "graduating" from fighter school and getting "volunteered" to lead the new incoming students to the top of Mount Palo... only a convenient Earthquake causes the plans to change abruptly, with The Mentor deciding to go to the mountain alone. Cue Main Character going to the town near the mountain and getting sent on a quest to save The Lancer (which involves getting magic water and then medicine), who then joins up to investigate the goings-on. Together the two of them climb Mount Palo and save the mentor's butt, then go forth into the world to find out exactly what's going on. On the way, they save the (assumed) Barrier Maiden, learn to talk to animals and plants, solve a murder mystery or three, kill the mentor and all his minions, kill Lucifer, and become Jedi expies. Literally - The Main Character gets "Force" as an attack spell and "Force Sword/Armor/Shield" as equips. There's plenty of Monster Fusing, just like regular MegaTen, but it becomes irrelevant once you learn how to fly.
This game provides examples of:
- Ancient Astronauts: While the specific details vary between versions, humans and beasts both originated on the Fifth Planet before eventually coming to Terra/Earth. The original Gaia Masters were also said to have come to the Fifth Planet from space, but this is not explored further.
- Boss Rush: Zodia/Mephist. They're both difficult, but Mephist is worse because you're coming right off of killing your teacher, who will hand you your ass on a silver platter if you're not careful.
- Friend to All Living Things: Those with high natural Force potential tend to show traits of this. Most notable Rudy in Last Bible III. When properly developed (or augmented with items) it allows one to talk to animals or even plants.
- Guide Dang It!: Good luck with dem- er, monster negotiation, since the game doesn't tell you how it works. Some of them are also flat-out unrecruitable, but unlike the mainline SMT games where this can happen, there's nothing telling you about this and you're still able to talk to them.
- Hello, [Insert Name Here]: When you first start the game, you get to name your character and your two party members.
- In Special, your name is Mahtel, but can be changed whenever you wish.
- Just Before the End: At least in the True Ending of the Game Gear port. However the canonicity of this is dubious, as while the Fifth Planet was destroyed before the events of sequel, the descriptions of how things played out are rather different.
- Magikarp Power: Special has the Beggar joke class, which promotes to Messiah at level 77. Though by that point, you should be more than strong enough to beat the game anyway.
- The Mentor: Zodia, the Main Character's teacher, made the Zord in order to fight the monsters. It didn't work out too well for him when you ransack his base of operations, or for you when Mephist reveals who the real baddies are right before trying to lay the smackdown on your battle-weakened ass.
- Rage Against the Heavens: Sorta. The Final Boss, his right-hand man, and his left-hand man are all implied to be the creators of all Monsters, and they're present at the Meeting of the Gods in Atlantis. Funnily enough, you see them in Remlia before recovering the children from Mount Palo, where they're considering giving the Orb - one of three MacGuffins keeping the entire world alive - to the second boss of the game. Given their lines after you save the kids (but before meeting the Priest of Ramuh for the first time), either they're really weak or there's something rotten in Remlia.