Hi guys been a buildbox user for some time now. Been working on an endless runner game. so far for all my questions I have searched and found the answers to. But i have hit a wall and can't seem to understand how to progress the game development further. Here is my problem. The game I'm working on the character jumps trains and platforms. main theme is different city in the background as part of the graphics and in between worlds it goes in to a tunnel that leads to a different city. I want the player to start on a random world level. as they progress I want the different world UIs to change randomly seamlessly. I don't know if anyone has played trixel rocket. how his world UIs seamlessly change to the next. I have followed him on instagram and tried to understand how it works. Can's seem to make it work on my own. I don't know if its the event observers that need to play a big part on it. If anyone understands how I can make this work I REALLY appropriate it. P.S. This is pretty much one of the biggest challenges that I have besides doing the sounds and music. Thanks.