So close to having a near perfect run! I could definitely see this game being expanded on. With its solid foundation, new enemy types, projectiles, and environments would fit well. All around, a good example of what Week Sauce games can be.
Cheers, done another 20 hours or so of work on the game since the February jam and planning to put up a new demo soon. Main additions are the upgrade item system that lets you build your character in different ways (various effects like making enemies explode on death or firing more projectiles) and some more enemy variety. Still deciding when to drop the update but likely be sometime within the next week.