Yes, you are allowed to bring two adult guests and two minor guests. Adult guests are $125 each and minors(under 18) are free.
To add minor guests to your registration, continue to the Registration Fees & Add-On page, click on Add a Minor Guest (Under 18)
Enter the required information and click Add.
If you wish to add another minor guest, simply click on Add a Minor Guest again and follow the instructions above.
To add an adult guest to your registration, on the Registration Summary step, click the 'Add Additional Attendee or Adult Guest/s' button then select Adult Guest to complete that path!
If you are currently registered, once you log in, click on Add Additional Attendee or Adult Guest/s at the bottom of the page.
Choose Adult Guest
Then click on Next
Continue through to the payment page.