Additions: -Added explosive barrels to the jungle. -Tutorial indicator on how to board up jungle fly spawner. -Hovering over an item in the shop will cross out the other item. Tweaks: -Elite enemies (icon above head) now only drop weapons, and will not drop health or ammo. -Bullets bounce off walls more accurately. -Ammunition boxes won't spawn next to each other anymore. -Some weapon costs were lowered. -Castle boss's abilities were changed slightly. -Sprite updates.