So! The first post jam update contains just the last little bit of content needed to make this a technically complete game. Like all game jam submissions, this was missing some blasted last crucial piece that I couldn't get completed in time. In this case, it was a victory screen or any way of detecting that you'd completed the level.

So that's in there now, along with multiple waves of enemies to fight and a timer counting down through the waves.

Things that DIDN'T make it in yet, but that I already know how to implement include:

• A dash/run upgrade
• A shield upgrade
• A full-auto weapon upgrade, once I figure out a way to make it less boring
• A charge-shot weapon
• Spend ghosts to refill health or increase ammo capacity in the upgrade menu
• A couple of variant enemy types for later waves:
  • "Chargers" - Aggressively close distance with the player
  • "Snipers" - Try and maintain their distance and fire faster bullets
  • "Orbiters" - Circle the level and fire rapidly

Now I just gotta figure out how to correctly resolve collisions between entities using different movement behaviors...