Just do a survey on the Sega website and sign up to their newsletter and get a free copy of Crazy Taxi on steam. The process is a little finicky so I am post what the people said from the site where I found it.
If you can’t find the survey: SurveyMonkey Powered Online Survey
If you don’t want to do the survey:
Some Steps: http://www.sega.com/survey/confirmation/surveyconfirmation.p… <— Had to do this when below didn’t work
Some Steps: http://www.sega.com/mailcheck?umail=User@Domain.tld <— Didn’t work until i did the above
The original site: https://www.ozbargain.com.au/node/335284
Enjoy!