Do not install them at the same time just choose which character you wanna be in the game.
Anna:
Press "T" to Taunt
Press "Delete" to call Elsa
Elsa:
Press "T" to sneeze Elsa to spawn 6 Snowgies
Press "C+R" to activate snow powers and again to deactivate
When power is activated:
Press "Right-Click+Left-Click" or "RMB+LMB for target only
Press "Left-Click" or "LMB" for every crowds around you

Let it fuck the police!!!