There is often a secret door in the lobby that you can enter by hitting colored blocks in order (usually Blue, Purple, Yellow, Blue found under stairs or around the lobby) to access hidden areas or easter eggs. Which specific part of MM2 are you trying to master, or
If you're looking to dominate the game without risking your account, use these "pro" strategies:
Pretend to be an Innocent by walking casually. If they draw their gun, juke them to make them miss—once they miss, they are vulnerable. As Sheriff (Precision):