Got the idea, and going... - #Update 1
So, I spent more than 2 hours of brainstorming but finally went with something solid.
By now this is what I have

I'm going to do some side scroller platformer exploring the idea of using an heart monitor as the scenario

Going to sleep now, hope tomorrow it goes nicely :)
I'll keep all my work on https://www.twitch.tv/obego