ok so idk how to say this but like you need to beat all the starting levels like in sequence like uhhh start from 0 and then go to the last NORMAL level
and then you like beat the last normal level theres liek a cutscene and blah blah blah and then after the cutscene you have to go to the games folder and then go to data and then streamingassets and then do what it tells you to do