Push the left and right arrow keys as fast as you can to run in a series of sprints. (myintimcity.com)
Up arrow key = Accelerate Down arrow key = Reverse Left arrow key = Move left Right arrow key = Move right Spacebar = Use weapon (agame.com)
There are many different dual types that require all sorts of keyboard skills, some examples are: «Quick Draw» which involves hitting the «Z» key faster than the enemy, «Pursuit» which is a DDR type of arrow key mashing, and «Struggle» where you mash the left and right arrow keys as fast as your finger will allow. (bitcultures.com)