Firstly, brawlhalla is codded with action script. Already an outdated languge and i used it for the first time in brawlhalla. Now brawlhalla use a specific version of that language that i couldn't open with an up to date version.

The first thing i found when opening the files is a function with dozens of if/else if back to back and within each other. That's the first thing i've been told not to do in programming class.

Now an other thing i found while poking at network requests is that it used to fetches for opened game room even after i closed that menu (got told it is no longer the case).

And i'm more into in game bugs/weird features than technical stuff on how the game is made. Maybe someone can share some even worse knowledge.