Curse of Castle Killem (Game Jam Edition)

An entry for "Shacknews Jam: The Third".  This uses KenneyNL's Patreon-exclusive FPS Shooter as a base and asks three questions:

• What if Pac-Man was in first person?
• What if the ghosts in Pac-Man could eat the pellets and get benefits as well?
• What if Pac-Man had a gun?

Goal of the game is to get as many gems as possible before the inevitable.

When skeletons pick up gems, they gain health and size.  When a skeleton is killed, two more skeletons will spawn in the center of the map. 

When all gems are gone from a map, all living skeletons will hunt down the player.  More gems will spawn within 15 seconds of all gems being picked up.  Once a skeleton is interested in you, it will never stop chasing you until one of you is dead.

Picking up gems gives the player 10 health.  If a player has more than 100 health, their health will slowly tick back down to 100.

v0.5: Added positional audio and changed some sound effects.  Modified damage ratios.  Increased maximum size of skeletons and added in varying speeds.  Gave skeletons a 5% chance of aggro on spawn and gem pickup.

v0.4: Add invert mouse X/Y support.  Add high score.
v0.3.1: Added readme with license for KenneyNL's assets.  Otherwise identical to v0.3.
v0.3: Added main menu.  Increased starting skeleton count.
v0.2: Fixed issue that would prevent skeletons from being aggressive after all gems were gone, adjusted timings.