At one point, you're on a ship. The group meets up with a random travelling swordswoman, who then proceeds to suggest everyone gets drunk together. This leads to her and your group's summoner- Klarth- drunk and talking about politics and how there's a spy in the area you're headed to. While this is going on, Arche, who is a witch and completely lusting for the main character, Cless, has passed out from drinking. She interrupts the swordswoman and Klarth's talks with random yelling-in-sleep moments about a rather explicit dream. Then, the morning after that, a monster is on the ship. The healer is seasick, and Klarth and Arche are both hungover, leaving Cless to fight alone.
There's also the bit- also on a boat- where Klarth asks Cless which of the girls he'd rather have. Cless is embarassed, and Klarth comments this:
"Yeah, Mint has that sort of quiet elegance, but I bet Arche f***s like a tiger."
It should be noted this was DeJap's Fan Translation, which added a large amount of adult humor for, apparently, the lulz. Which, admittedly, were had.
How about every time Dhaos gets defeated by Indignation. Seriously am I the only one who laughs every time he is surprised by that skill.
In a hilarious subversion of Only Smart People May Pass, the party is trying to get into Volt's Temple, but the door is closed, and a sign nearby says that they must first solve a riddle before it will open. The party laments that the team's Smart Guy was left behind at this point...until Max just rams the door open on his own (and shortly thereafter gets electrocuted).
Speaking of Volt's Temple, the boss battle with Volt can be unexpectedly hilarious. In all other games, Volt is completely silent, but for Eternia, Volt speaks with a robotic voice. The fight immediately starts off with a robo-voice "INDIGNATION".
Honestly, the whole game is filled with awesome humor. There's the moment where you find the pot that contains "Colin's fart" at the Mine of Gnome.
The Tales Series skits contains a lot of funny things. From Tales of Fandom Gaiden:
"DAMN IT, YOU'RE NOT HEROES!! JUST A BUNCH OF MAJINKEN/DEMON FANG USERS!!!" - Kyle
Just when Judas managed to calm things down among the bickering heroes, Zelos sparks a new firestorm by asking them which female protagonist is the best. Harold asks Judas to stop them again, only to find that he too is arguing on behalf of his beloved Marian.
In the Apple Gummi, Suzu complained about her lack of popularity, and then Mint tried to comfort her by saying 'popularity doesn't matter'. Cue Arche telling her that she ranked higher than Mint despite her being the heroine. Cue Mint getting petrified out of shock. Zelos gets ecstatic that he gets to be number 3. Cue to Zelos saying that to be popular, they don't have to be heroes, which caused Cless getting petrified out of shock. Jade dismisses the poll as unreliable because Tales of the Abyss was not represented yet, but Arche points out that Luke made 10th, which causes Jade to get petrified out of shock.
This is followed by a battle between Jade and Cless to prove which game's battle system is superior. Jade runs circles around Cless (literally) thanks to the free-run system from Tales of the Abyss.
At the start of Apple Gummi, Zelos introduces himself as Tales of Symphonia's main character. Jade tells him not to lie about that, and that he has to be accurate. So Zelos concedes and reintroduces himself as a supporting member of the cast... and then Jade calls himselfTales of the Abyss's "Lead character from the shadows". If that wasn't enough, one of the scene transitions uses Jade's face, and has "Main Character" plastered all over it.
Actually, it's "Main Offender".
Then at the end, Zelos starts talking about love, and the mood gets all warm and fuzzy. Klarth leaves to go find Mirald, Cless and Mint leave together to "go look at the snow," Chester begrudgingly asks Arche to go get something to eat with him, and Zelos quite literally skips off to spread his love to the hunnies. That leaves Jade and Suzu. Jade offers to take her out for curry, and Suzu basically says "I'M NOT SUPPOSED TO GO PLACES WITH STRANGE OLD MEN" and runs away.
In Lemon Gummi, there's a lot of them: Reid getting sacked by Jade for almost mentioningMonster Hunter; Senel's mock battle with Zelos; Veigue repeating his fist fight with Tytree towards Reid; Jade suggesting a 'Raise-A-Luke' game; and finally... the announcement that Veigue is not in Radiant Mythology 1, causing him to cry "CLAAAAAIIIIIIRRREEEE!!!"
How about Lloyd suggesting a Tales Of Dating Sim, then mentioning that Collete would be impossible to get because she's with him. Then Zelos mentions that by that logic, NOBODY would be available, 'cause all the main heroines are with a hero already. Then Lloyd suggests Sheena, and Zelos starts running his mouth about her, saying that she's OK, but how he'd rather have a heroine, etc. All the while Sheena's portrait is gradually running in from the background. She gets closer and closer, all the heroes except the oblivious Zelos run away. He turns around, cut to black, and Zelos screams.
This exchange between Zelos and Jade when introducing Luke
Luke: (complaining about everything)
Zelos: (to Jade) Hey, what's up with this main character?
On celebration of Tales of Hearts, there were some funny drama CD including casting Shing, Kohak, Luke and Asch as preschool kids (with Guy as the teacher). Luke bullying Shing might go over the line, but then what follows was Asch bullying Luke to tears by constantly calling him replica in Motor Mouth ("Replicareplicareplicareplicareplicareplicarepliiiiica!"). And after Kohak ends up crying, Guy enters and tried to get Asch apologize... only for Asch to think Guy is just siding with Luke... and cries. To quote a youtube user... "ASCH IN A CRYING VOICE. MY LIFE IS COMPLETE."
Same drama also includes Guy trying to start a musical, until Barbatos kicks him off the main spotlight and led the musical. Guy eventually got a bit fatigued and tried to eat a Gumi... cue "NO ITEMS EVERRRR!!!". To add bits on the fun, when Guy tried eating, Luke is warning him, Emil and Ruca are already sweatdropping in fear, while Shing and Kohak (that time being the newest of the Tales hero/heroine) remain blissful in question mark until that one attack land in.