Fission Impossible was a limited time quest chain that was released during the Valentine's Day 2015 Event. The second quest chain from the Valentine's Day 2015 Event, Return to Sender, starts in the middle of this quest chain.

Quests Edit

Quest Requirements Time Triggered By
Fission Impossible Pt. 1 Make Lisa Send a Valentine to Fallout Boy 8h Auto
Fission Impossible Pt. 2 Reach Level 8 and build the Van Houten House
Make Milhouse send a Valentine to Lisa
8h Auto
Fission Impossible Pt. 3 Make Lisa put herself in fake danger
Make Sidekick Milhouse rush to Lisa's rescue
Fission Impossible Pt. 4 Make Lisa wait in a tree 24h Sidekick Milhouse
Fission Impossible Pt. 5 Make Lisa go on a date with Sidekick Milhouse 24h Lisa
Fission Impossible Pt. 6 Make Sidekick Milhouse celebrate 4h Sidekick Milhouse


Fission Impossible Pt. 1Edit

Character Dialogue
Marge Icon "Hey Sweetie, how are your valentines coming along?"
Lisa Icon

"Almost done."
"I've sent cards to "Friends of the Forests", "Black Rhino Buddies", "Hers Helping Him-alayas", "The Million Malayan Tiger March"..."
"...and I have one very special valentine for one very special boy."

Marge Icon "Thank goodness. Someone a mother could cry at a wedding for."
Lisa Icon "I'm sending a card to Fallout Boy."
Marge Icon "Oh. For a minute there, I thought you meant a real boy."

Fission Impossible Pt. 2Edit

Character Dialogue
Bart Icon "Milhouse, c’mon. We’re s’posed to be cherry-bombing Dr. Nick’s organ donor deliveries today."
Milhouse Icon "Sorry, but I’ve got a stack of valentine’s cards to write."
Bart Icon "Breaking hearts comes before blowing up hearts? I’ll never understand you."
Milhouse Icon "Bart, "you’ve got to give love to get love."
"I read that on the side of a very wise Squishee cup."
Bart Icon "These are all addressed to stuffed animals and action figures!"
Milhouse Icon "Not all of them. There’s a bunch for Lisa in there."
Bart Icon "You'd better stick with Puppy Goo-Goo and Headless Hellraiser instead of my sister."

Fission Impossible Pt. 3Edit


Character Dialogue
Homer Icon "Lisa! Our mailbox is jammed with valentine's cards!"
"How am I supposed to get my junk mail? If I miss out on 2 for 1 carpet cleaning or a vinyl-clad window deal, I’ll be very upset."
Lisa Icon "Let’s see… Milhouse, Milhouse Van Houten, Master Van Houten, The ‘House, Milli-Van-Illie-Houten..."
"... no Fallout Boy..."
"I know he’s a superhero with the fate of entire nations in his hands but geez... how long does it take to write your name on a card?"
"I’m going to do something that goes against every fiber of my being… play the victim."

Lisa's Job StartedEdit

Character Dialogue
Milhouse Icon "Dad! Quick! There’s an emergency!"
Kirk Icon "You have clean underwear in the laundry room."
Milhouse Icon "Not that kind of emergency. Lisa’s trapped in a tree! I can save her and finally be her hero!"
Kirk Icon "Take an extra pair of underwear just in case."
Milhouse Icon "Any true hero would."

Sidekick Milhouse's Job StartedEdit

Character Dialogue
Lisa Icon "Milhouse! You're ruining everything! I'm waiting for the REAL Fallout Boy!"
Sidekick Milhouse Icon "I’m as real as he gets. I have Fallout Boy’s cuddlebug cape, orthopaedic gloves, prescription eye mask and corrective boots!"
Lisa Icon "But I want the REAL Fallout Boy to rescue me and carry me off to his Treehouse of Solitude."
Sidekick Milhouse Icon "I’m confused. This calls for one of Fallout Boy’s super-power anxiety pills!"
"Darn! I left my pill purse at home."

Fission Impossible Pt. 4Edit


Character Dialogue
Sidekick Milhouse Icon "Lisa, could you please come down from the tree so I can save you?"
Lisa Icon "I’ll only come down for Fallout Boy."
Sidekick Milhouse Icon "Fine. In the meantime, your Mom sent over more valentine’s cards that came in the mail."
"The desperate ones are from me. FYI: They’re sealed with real teardrops."
Lisa Icon "*sigh* Where's a hero when you really need one?"
Sidekick Milhouse Icon "I might need one myself. My foot’s stuck in a woodchuck hole. But this means we can wait together!"


Character Dialogue
Lisa Icon "Milhouse, wake up!"
Sidekick Milhouse Icon "Huh?! Whuh?!"
Lisa Icon "One of those valentine's cards was from Fallout Boy! He finally replied!"

Fission Impossible Pt. 5Edit

Character Dialogue
Lisa Icon "Dear LISA SIMPSON, your fan mail to Fallout Boy was received."
"That wasn’t fan mail! I spent $2.95 on that card! “Fallout Boy can’t save you for Valentine’s Day but you can save on merchandise every day from Fallout Boy’s online store.”"
Sidekick Milhouse Icon "That’s nice of him."
Lisa Icon "No, it’s not nice. This is just a robo-reply from Fallout Boy’s heartless, corporate shills."
Sidekick Milhouse Icon "What are you going to do?"
Lisa Icon "I am going to spend Valentine’s Day with the boy who actually came to my rescue."
Sidekick Milhouse Icon "Who’s that?"
Lisa Icon "You! But no physical contact and you have to wear the costume the whole time."
Don't miss the arrival of the real Fallout Boy in Springfield. COMING SOON!
— In-Game Message

Fission Impossible Pt. 6Edit

Character Dialogue
Sidekick Milhouse Icon "I asked Lisa for a goodnight kiss and she said no..."
"... which is way better than last time when she ran away screaming!"
"A “no” is practically third base for a guy like me!"
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