1. The level size feels perfect right now, though it'd also be interesting if it varied in size randomly.
2. The blue vial replenishes almost nothing right now, though I assume that's since it's planned to do something special later. The red vials seem to give a fair amount.
3. Here's a few ideas for temporary duration powerups:
- Something that slows down enemies and the horde
- A magnet that pulls in nearby blood packs through walls
- A boost to how much blood packs give, and it allows the blood meter to overfill past its normal maximum.
- Instantly kill any enemies that you touch
- Increase max blood by a large amount and fill the meter with 5-10 blood packs worth, but slightly increase the speed of the horde for the rest of the current run.
4. The horde's speed seems perfect as-is.
5. Maybe the amount of blood packs and powerups collected? Distance travelled?
6. Of course, it's fun trying to repeatedly beat the high score and push it as far as possible.
7. I'd recommend either making the blue vial not permanent, or have it permanently increase the max blood but NOT the starting blood. Otherwise, your high score becomes entirely dominated by how many raw hours you've played, and not how skilled you actually are at the game, since you just have an ever-increasing starting pool of health.
Bugs:
- There's no way to restart the game once you die, other than relaunching the entire game.
- If you're holding down a movement key when you exit a level, in the next level your character won't move until you release the key and start holding it again.
Misc:
- I'd recommend tweaking some of the shrub sprites, they blend in easily with the background and are hard to see at a glance.