Sushi Cat: StoryCraft World Creator is actually an April Fool's joke. While it is playable, it has a long loading screen. There is a quick-loading pink bar, another quick-loading blue bar, gold and green bars that load very slowly and then purple and red bars that load at a moderate speed.
However, most of the loading screen is there just to troll you. If it was a true loading screen, it would only have the pink and MAYBE blue bar(s).
However, there is a minigame during the loading screen. The minigame consists of feeding a cat.