Come and play the game called Fionna Fights right now, which is the newest of the online Adventure Time Games 2016 from our website, where you are sure to have a lot of fun, because in this game we will see the female version of Finn and Jake, from a parallel univers, which are Fionna and Cake. As it says in the title, Fionna has to fight, and you are here to help her in her adventure, and make sure she comes out victorious. Fionna and Marshall Lee were on their way to Lumpy Space Prince's party when a swarm of monsters started attacking them. It't time for you to help her bust up some bad guys! From the shop you can buy yourself weapons and other items, if you have the necessary funds. You will be riding on a creature in the sky, and you have to click continously in order to attack the enemies with your sword. Try to hit as many before your energy runs out, and make sure you gain as many points as possible. Every miss will cost you some of your energy, so be carefull not to miss. We hope that you will have a lot of fun, and will help Fionna destroy as many of her enemies as possible, and make her victorious!