FusionFall

FusionFall is a real-world MMORPG run by Cartoon Network, in which players explore different Cartoon Network places and fight monsters to protect the world from Lord Fuse. It contains Cartoon Network characters, including some from Adventure Time. The Princess Bubblegum nano has been released by code along with Mordecai from Regular Show and Darwin from The Amazing World of Gumball

Finn, Jake, Stanley, Princess Bubblegum, the Reaper, Ice King and Secret Snail all appear as NPCs in the game.

Beginning
You start out in a training camp and Ben 10 along with other Cartoon Network characters will guide you through the tutorial, where you learn the game's controls and how to fight, also earning your first Nano (Finn).

Missions
Finn is located at Orchid Bay in front of a flower. In Sector V there is a frog on a toadstool where you can get a mission from Princess Bubblegum. Finn will tell you to use the flowers to jump from iceberg to iceberg to get to the Ice King's Fortress and lie, telling him that you're there to fix his cable, so you can get into his basement. Finn, Jake, and Princess Bubblegum will be there. If you are Lvl. 17 you can save Princess, or Candy Wife. Finn is also at the Mystery Dungeon in Eternal Vistas. The Reaper from "Wizard" will be there to ward through the portal. If you can find Stanley he will sell you T's. There was a code to get you the Finn Hat but is now expired. You can get the Marceline Vampire Head using a code, you can also get a Finn nano when you begin the game as a reward for your first nano mission, or using a code if you've already reached a higher level.

Jake is used as a jump pad in Sector V to get to Finn's statue, Ice King's Basement to get out, and in the Candy Wife saving mission. There used to be a Future zone in FusionFall, that was removed February 16, 2011. In the Future, Jake could be found in Sector V, but there were no signs of Finn. Probably because Finn was taken out during the invasion.

Heroic Leap
Finn helps you leap into action! (Jump-Self)

Righteous Recovery
Finn will bring you back to life if you fall in battle. (Revive-Self)

Smite Evil
Finn will slay anything that's evil. (Damage-Point)

Ear Glide
Glide into action on Jake's magical ears. (Rocket-Self)

Leg Stretch
Jake will help his friends step right out of harm's way. (Jump-Group)

Viola Lullaby
Jake's soothing melody can put those nearby into a gentle slumber. (Sleep-Self Area)

Ice Bolts
Freeze your foes with Ice King's shockingly cool bolts. (Stun-Area)

Beard Pilot
With a beard this cool, there's no holding you down. (Rocket-Self)

Penguin Sense
When building an army of penguins it helps to start with the eggs. (Treasure Finder)

Sweet Dreams
Normally too much candy will keep you awake, but not with this power. (Sleep-Area)

De-Corpseinator Serum
Hopefully you won't turn into a zombie. (Revive-Self)

Penny Candy
Free money translates into cheap candy, right? (Bonus)

Items
FusionFall features several Adventure Time related/themed items.