Yeeees I only caught the 4K coin issue after the jam had ended, unfortunately. I feel like a goofus because I did scale some parts of the game by screen size, but not everything. Oops.
It sounds like you encountered the other main issue which I only discovered after submitting: too many couches becomes almost impossible to lift. Since each balloon adds 1kg, you’re better off with only like 3 couches and 800+ balloons. Not my game design intention, double oops. There’s actually a second secret ending where you go to space, but it sounds like the mega couch you made might never have been able to fly so high, my apologies 😿
LibGDX is an open-source java game engine/framework, cool if you like java and not having a visual editor like a “real” engine provides. I like it, but it’s a lot to take in.
Anyway, thanks for playing!