A massive battle using Zak S's Moshpit Rules and the Dungeon Dozens Army Of Evil tables saw the teens facing an epic force of evil plant-based necromancers with only friendly Lizardmen, a detachment of Predator Drones from the future, a Gorgon, pick-wielding man-ape shock troopers and Evil Fake Luke Skywalker.
Result 7 on the Heavy Infantry table is a 'Hard-bitten division of armoured simulacra of famous champions of good'. So I let them name the hero's. We got:-
Aulcard. (Teen 1's Halloween costume. He brought the hat to the game.)
Ben 10. (Soul eaten when he fell into a moat made of the evil green mist from Anastasia.)
Buzz Lightyear. (Stamped to death)
Teen1 "Ahhh, we could have got Superman. But we just went for ones that were funny."
The Terminator. (T1000 died saving Teen 2 from lightning caused by flying Predator Drones into Climate Hawks.)
Ash Ketchum. (Punched to death before deploying his first Pokemon. Generally considered by all present to be secretly evil as 'he never ages, he's been on missions that take 13 years and he still says "I'm twelve".' Table opinion was that Ash hangs around with a lot of new people as he is secretly disposing of them to conceal his freakishly aged body.)
Mario. (Cause of death unclear. Either tried to jump on someone in the battle and got skewered, or tried to eat a bad mushroom and exploded. Not enough time for anyone to check.)
Commander Shepherd. (Survived. I think.)
And perhaps one or two other Amine characters I'm not familiar with.
Teen3 ably prevented a FLAILSNAIL incursion by pointing out that 'I've got a telepathic snail right here.' Teen's high charisma and snail-based psionics enabled him to subvert the FLAILSNAIL'S loyalty. Same teen still takes 5 minutes of furrowed brow when I ask him 'how to you hide?' when he wants to use stealth.
Battle ended with the Teens taking down an evil* Zoimancer that Teen 1 had previously tricked into becoming a Minotaur, thereby making him more dangerous, while an evil Liche with recently stolen eyes sat on his new Flailsnail and laughed.
Success resulted in no magic items, but a field promotion for Teen2, who was randomly assigned command at the start of the battle, now making him a 'Major General'. Which proved useful when the others laughed at his Halloween costume for possibly containing a skirt.
*Though the word really has no relative meaning in the campaign.