Seems fun. I signed up. However, in Chrome on Ubuntu I couldn't fill out the email form field, and when I logged into my android phone (you'll have an app for that too right?), it wasn't mobile responsive and I had to zoom in and swipe left and right to see the page.
I'd say I'd like to help, but it's been 5 years since I've used any Java. My only decent languages are scripting ones - python and php as well as JavaScript (mediocre).
Just FYI.