From RPG to arcade
Firstly a nap
When joining the compo I had no idea what to expect from my head. I haven't been in the game dev scene since somewhere around the half of my studies thus I needed some time to return to Haxe development. All in all, I lost my ability to come up with ideas on demand, so a nap fixed it.
Simplicity
At first I wanted to make some RPG-like clone. However, 48h is not that much for creating the storyline, sprites, actions, etc. So, why not just make a single scene of this storyline as a demo? And this lead me to a completely new idea which is an arcade like.
I already have some basic movement, placeholders and a lot of graphics.

Subject to many changes.
It's 1AM here and I woke up at 7. Maybe it's time to sleep.