Fixed a bunch of bugs and optimizations, including:

• Game stutters are reduced by preloading some effects on start-up (you may have seen this the first time you draw damage or destroy an enemy … there’s still work to be done here though)
• End game lag is reduced by sequentially destroying enemies vs. all at once
• Fixed a bug where enemies destroyed by splash damage on game end would increase your score/high-score
• Fixed a bug where mega cannon wasn’t always damaging enemies
• Fixed a bug where enemies colliding with you wouldn’t inflict damage because these were instanced enemies that didn’t have enemy in their body.name - so I wasn’t detecting it. Changed this call to be group-based.
• Changed transparency of end game and game over modals to see the explosions behind the modal