Press the purple button. You can get a password in random. (it can be a password) e.g. 67j9HdDtUHQbetx . Choose "Random Numbers" to random numbers.
I used 39 blocks to make this project. v1.0: https://scratch.mit.edu/projects/407808041 v1.1: https://scratch.mit.edu/projects/408391676 v1.2: https://scratch.mit.edu/projects/411222512 v2.0: https://scratch.mit.edu/projects/411460306 v2.1: https://scratch.mit.edu/projects/413110600 v2.2: https://scratch.mit.edu/projects/415895727