1. Initially, you have to identify the Mountain Mike'S Pizza discount code you're keen on from this page and click on Get Code, located on the right side of the title.
2. After clicking once, you'll see the offer code displayed and copied automatically to your clipboard.
3. Following this, you'll be required to go back to the checkout page of mountainmikespizza.com, spot the promotional code box, and input the code you copied earlier.
4. As a final step, you need to press 'Apply Code' to view the size of the discount on your current order.