Added new hero Kun Kun and breakthrough hero Great Sage.

Kun Kun: Can throw a basketball that will explode upon a second glance, causing terrifying damage.
Great Sage, the Limit Breaker: Can charge up to enlarge and elongate his golden cudgel, causing greater area damage.

Added new items:
Plum Juice: After eating a banana, you can throw the banana peel, causing area damage.
My Fruit Stand: Gain extra coins when picking up bananas.
Headless Lady Gun: Prioritizes attacking enemy snipers and advanced summon units of self-propelled artillery.

Added death sound effects for killing enemies.
Increased score bonus for killing enemies.
Updated gun sound volume adjustment.
Reduced the speed of Mutant Crabs generating Radioactive Fish to avoid an overabundance of fish with nowhere to hide.
Enhanced the guiding speed of the experimental mech's laser.
Enhanced the flight speed of the demon's sword energy.
Significantly increased the damage of the heavy sniper rifle.
Greatly strengthened the explosion range and damage of the Roc Bomb.
Increased banana drop rate.
Golden weapons can now provide two weapon synergy levels.
Advanced weapons will increase the damage of active skills.
There is a chance for the "I Want to Reassemble the Army" to refresh advanced summons in low rounds.