If you forget your password to login to your Boom account on Roku, you will need to go to www.boomgaming.com. Once you are on the site you will need to click on the 'Boom Gaming' login option.
You will then need to type in the email that you used to create your Roku account. Fill in the email field only and then select the 'Forgot your Password?' option. You will then receive an email providing a link for you to change your password. Upon changing your password you will then be able to log back into your account on Roku.