St John's CPR Hero was created to teach children (and a few adults) correct CPR rhythm and compression techniques.
The correct frequency for life-saving CPR is 100-120 chest compressions per minute... 
that's around the same BPM as the Bee Gees' "Stayin' Alive".
The game was built in HTML to enable portability through web browsers.
This meant the game could easily be taken to different events, schools, and remote communities all over WA.