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.