Updates:

V0.1

Made The Base Game

Beta v1.0:

New art

Second Room fixed

Added Home Screen

Removed round

Removed Quick Revive

Removed Ammo

Removed Olympia Buy

Removed Ammo Buy

Removed Sound Effects

Update v1.1:

Added Ammo Buy

Added Quick Revive

Fixed Second Room Glitch

Added Rounds

Added Knife

Added Olympia Buy

Added Cooldown for Guns

Other Glitches Fixed

Fixed Health and Quick Revive

Added Ammo Back

V1.2

Added Thumbnail

Fixed Door Glitch

V1.3

Fixed gun glitches

Changed buy Olympia Graphics

V1.4-1.6 Made by CoolManD2009danz

V1.7.0

Added Juggernog

Added Another Room

Added another spawning spot

Fixed Gun bugs

Fixed Room Glitches

Retextured Door

Home Screen Remade

Secret??

V1.7.1

Fixed Home Screen

Slightly changed thumbnail

V1.8.0

Added Barricades

Fixed Health Glitch

New Thumbnail

New Home Menu

Textures Changed

V1.8.1

Fixed Mystery-Box Glitches

V1.8.2

Mystery Box Textures changed

V2.0.0

Removed Secret

Added Second Map

Added Pack A Punch

Added Power Switch

Fixed Glitches

Changed Raygun Ammo Textures

2.1.0

Added More Rooms To Map 2

Changed Home Screen

Fixed Bugs

Added Stamin-Up

Added Pack a Punch Textures

Added Ammo Buy to Map 2

Fixed Zombie Spawns on Map 2

V2.2.0

Fixed Ammo Bugs

Changed Stamin-Up Location

Added Shootables

Added Easter Egg

Fixed Bugs

Added Another way to get RayGun PaP

Fixed Quick Revive

V2.2.1

Some Juggernog Tweaks

Fixed Infinite Points Glitch

V2.2.2

Fixed Infinite health glitch

Made it show mouse pointer

V2.2.3 

Changed Barricades Textures

V2.3.0

Changed button animations

Fixed Player movement

Made the game run smoother