Player 1
W
A
D
- A
- Move left
- W
- Jump for the balloon
- D
- Move right
Slime Keepy Uppy
Keep the balloons up — together, or for as long as you can.
Controls
Player 2
I
J
L
- J / ←
- Move left
- I / ↑
- Jump for the balloon
- L / →
- Move right
About Slime Keepy Uppy
Slime Keepy Uppy is the simplest slime game and the hardest to stop playing. A slime, a sky full of balloons, one rule: don't let them touch the ground. The bounces get awkward, the balloons drift where you don't want them, and your score is simply how long you last.
It comes from the same early-2000s family of Java slime games as Slime Volleyball, and like all of them it disappeared from browsers when Java applets did. This is a faithful port of the original to JavaScript, so it runs in any modern browser with nothing to install — same balloons, same bounce, same slow creep in difficulty.
How to play
Move under a balloon to knock it back up. Where it lands on your slime decides where it goes next: the edges send it sideways, the top sends it straight up. Jump to reach a high one. Play together with a friend, or alone for as long as you can.
Tip: don't chase. Small movements keep the balloons above you; big ones send them to the far side of the screen.
When you've had enough of juggling, Slime Volleyball adds a net and an opponent.
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