Starting, agile style...
Working in sprints of 3 hours. We'll see how much sprints I can do. It works quite well at work, so why not here ๐ I'm using PICO-8 so it's much easier than my previous attempts ;-)
Genre
I'm doing a shmup, since it's the easiest genre to code with Pico-8, and one can be rather creative with the game dynamics to be interesting.
Sprint 1 - Skeleton - Done
The basics of the gameplay are done. Also with rather simple sprites.

Evolving towards the theme
Now, to stick to the theme, I'm planning to have limited ammo (the second bar), that can be charged (I just don't know how yet). And of course, you'll start with 0 (zero) ammo at first.
Let's see how it spans out.