Upgrades

"Unfinished, subject to changes. Please link upgrades to their respective pages." Courtesy of Teamfortress2328

1 star
Double Shot

2 star
Ice Bullets - Poison Bullets - Fire Bullets - Triple Shot

3 star
Healing Bullets - Burst Fire - Fast Fire - Cannon Balls

4 star
Quad Shot - Laser - Lightning Strike

5 star
Penta Shot - Beam - Dual Wield - Sunbeam

Stun Bullets - 1 star - 1,000 coins
Chance of stunning enemies.

Ice Bullets - 1 stars - 1,600 coins
Freezes enemies in a block of ice temporarily.

Fire Bullets - 1 stars - 1,400 coins
Sets enemies on fire temporarily.

Poison Bullets - 1 stars - 1,750 coins
Poisons enemies temporarily.

Healing Bullets - 3 stars - 3,500 coins
Heals your friends when you shoot them.

Cannon Balls - 3 stars - 7,250 coins
Chance of explosive bullets being fired.

Double Shot - 1 stars - 750 coins
2 more bullets per shot.

Fast Fire - 2 stars - 2,450 coins
Time between shots shortened greatly.

Triple Shot - 2 stars - 2,250 coins
3 more bullets per shot.

Burst Fire - 3 stars - 3,650 coins
Fire 3 times per click.

Quad Shot - 4 stars - 8,300 coins
4 more bullets per shot.

Penta Shot - 5 stars - 37,500 coins
5 more bullets per shot.

Dual Wield - 5 stars - 1,449 robux
Double the guns (- double the firepower! Akimbo wield a second laser gun and maximize your damage!)

Laser - 4 stars - 8,500 coins
Fire lasers instead of bullets. 12 base damage.

Beam - 5 stars - 32,500 coins
Fire energy beams instead of bullets. 15 base damage. Firerate decreased a little.

Sun Beam - 5 stars - 4,999 robux
Harness the energy of the sun and disintegrate everything!

Trivia

 * When the Laser and Beam upgrades are used simultaneously, the projectile is a green laser that does 61 damage with a slow firerate.
 * Combining multiple upgrades increases DPS, based off of how many upgrades you're equipping at once and how many stars it's worth.
 * Costs 94,400 coins to buy every upgrade.
 * There are 14 upgrades in total.
 * Combining Ice Bullets and Fire Bullets will cause the enemies to be turned into stone instead of the usual ice.