OH MY! One of mine made it to the show! OK, let's go with it and do...Banana Warriors of Dimension X!
A little world building first. The Banana Continuum consists of 26 linked dimensions, from Dimension A to Dimension Z. Each of the dimensions is home to a Banana Collective, a bunch of bananaoids that live, love, and make more bananas. They trade with other dimensions in the Vegiverse, part of the Agriverse. Everyone is told that you can only travel from A-Z and in reverse order. But you can't go from Z to A.
Or so you are told.
You also can't leave the Continuum, as bananas that leave it ripen and die. Again, so you are told.
Tragedy strikes, as virus strikes the Cavendish Collective in Dimension A! It soon spreads like wildfire from A to W, with the valiant Bananas of Dimension X closing the doors and keeping it from entering their world. The scientists of W were able to isolate and examine the virus and transfer their information before the connections to their dimension were broken.
The Virus is artificial and someone purposely spread it to most of the Banana Continuum!
To save their people and those in Dimensions A through W, the Top Banana, Sir Peel, orders the Banana Warriors to leave the Banana Continuum and find out who created this virus and bring them to justice! It's a volunteer only mission, as it means certain death from ripening.
You are part of that band of volunteers, a bunch of green Banana Warriors, venturing forth to find out the truth about the Virus and the fate of the Banana Continuum!
Since this is very pulpy, I'd use Fate Accelerated for the rules, with the advance knowledge that the characters have a definite shelf life. Or so they're told.
I'm saying that a lot, aren't I? This is setup as a form of Suicide Squad (Bunch)/ Strikeforce Morituri game. You are the expendable cannon fodder, out on a doomed mission. Or, let's say it together, "So you are told."
The truth is that Bananas can survive as long as they want outside the Continuum as long as they get a new encounter peel. It turns brown and degrades, protecting the banana within. If you can get a Plantain encounter suit, it lasts even longer.
The Virus was not created by outside forces, it was created by the top bananas of Dimension Z. They discovered that you can go from Z to A directly. In fact, you can go to anywhere in the Continuum without a problem. But the Bananas of Dimensions A, B, and C kept that a secret and exploited the other dimensions of the Continuum for their resources and labor, while they reaped all the rewards and wealth. The Bananas of Dimension Z decided to overturn the hierarchy and make themselves the top bananas and remove the competition. And they are immune to the virus, as they are Lakatans, not Cavendishes.
So it's an adventure of exploring new worlds in the Vegiverse, combating the forces of Z, and finding out it's all been a lie and its up to you to Make Things Right. You need to ally with the Plantains and other Bananas out there to fight for what's right. And to find a cure for the Virus. Perhaps, hybridization?
(By the way, if you want a guest host, I should be available.)
Obligatory Game Pitch:Drat! The Space Patrol is after us again!