I committed to something vaguely in the theme and made some of the hard choices about game design and mechanics.

Asset creation is well underway and I think my plan for tomorrow morning is to finalize the minimal set of assets and wire-frames of the UI.

The game will be 2D and the basic mechanic is sort of in the broader vein of vertical scrolling Galaga games but with timed levels and a health bar.

The theme based mechanic is that on level completion, the remaining health balance corresponds to in game currency for upgrades in the store.

The most basic upgrade will be either an increase in frequency of fire or a spreader.

The bullets are going to interact via sprite colliders.

The game is being developed from a mouse + click perspective [alternatively arrow keys + space]...but I want there to be a mobile or web friendly port on completion (or shortly after).

Looking forward to making some music tomorrow once I've gotten some sleep!

I'll have to be done by fairly early Sunday or else I'll have to submit post Compo since my day will be fairly packed.