Ucba

Balon yükselme eğilimindeyse, turuncu baloncuklar balonun düşmesini sağlar. Balon düşme eğilimindeyse, turuncu baloncuklar balonun yükselmesine neden olur.

(English)
According to balloon's rising or falling move, orange bubbles make the balloon fall or rise. If the balloon is making rising move, orange bubbles will make the balloon fall. If the balloon is making falling move, orange bubbles will make the balloon rise.
Just click on the screen and try to fly the balloon. Good luck.