Welcome to Militia, where you must fight off the skeleton horde by jumping on top of them, all the while dodging their attempts to jump on top of you. You can unlock 3 additional characters who'll aid you and fight alongside you. In case you didn't realize, the jewel on the castle is a health meter and the banner displays your score. Post it in the comments! Characters include peasant, squire, beekeeper, and baker.
I've updated the last version of Militia, and now I've added several more unlockable AI characters that will join you in defending the lazy king from the army of skeletons. Hooray. It was really just an AI test in which I created around a dozen pathfinding systems and chose the best fit for each character. On the bright side, that means each character in the game (including enemies) all act differently and prioritize different targets, not to mention their skill level.