Board Thread:Game Discussion/@comment-50.53.131.82-20150721201100/@comment-26715739-20150721205014

I googled it and the best I could find were some articles from late 2013 (talking about iOS and Blackberry) that it was a way of entering cheat codes (in particular one to get a free -low end-Porsche).

It could be a sign that they've not done a proper QA exercise on the release (ie its used during testing to help them quickly get whatever cars etc and taken out before the final build).

It has also been suggested that it might have something to do with Android Party Play - although I'm assuming that you only see options for that if you've got the controllers attached.