File list (Check if you may need any files):
WindowsGame1
............\WindowsGame1
............\............\bin
............\............\...\x86
............\............\...\...\Debug
............\............\...\...\.....\Content
............\............\...\...\.....\.......\Fonts
............\............\...\...\.....\.......\.....\GameFont.xnb
............\............\...\...\.....\.......\Sprites
............\............\...\...\.....\.......\.......\background.xnb
............\............\...\...\.....\.......\.......\cannon.xnb
............\............\...\...\.....\.......\.......\cannonball.xnb
............\............\...\...\.....\.......\.......\enemy.xnb
............\............\...\...\.....\.......\.......\Pause.xnb
............\............\...\...\.....\WindowsGame1.exe
............\............\...\...\.....\WindowsGame1.pdb
............\............\...\...\Release
............\............\Content
............\............\.......\bin
............\............\.......\...\x86
............\............\.......\...\...\Debug
............\............\.......\...\...\Release
............\............\.......\Content.contentproj
............\............\.......\Fonts
............\............\.......\.....\GameFont.spritefont
............\............\.......\obj
............\............\.......\...\x86
............\............\.......\...\...\Debug
............\............\.......\...\...\.....\Content.contentproj.FileListAbsolute.txt
............\............\.......\...\...\.....\ContentPipeline.xml
............\............\.......\...\...\.....\ResolveAssemblyReference.cache
............\............\.......\...\...\.....\TempPE
............\............\.......\...\...\Release
............\............\.......\...\...\.......\TempPE
............\............\.......\Sprites
............\............\.......\.......\background.tga
............\............\.......\.......\cannon.tga
............\............\.......\.......\cannonball.tga
............\............\.......\.......\enemy.tga
............\............\.......\.......\Pause.tga
............\............\Game1.cs
............\............\GameObject.cs
............\............\obj
............\............\...\x86
............\............\...\...\Debug
............\............\...\...\.....\cachefile-3dd06a8f-8f14-4769-b6ce-30fbba3c4f7e-targetpath.txt
............\............\...\...\.....\Microsoft.Xna.Framework.RuntimeProfile.txt
............\............\...\...\.....\Refactor
............\............\...\...\.....\ResolveAssemblyReference.cache
............\............\...\...\.....\TempPE
............\............\...\...\.....\......\Properties.Resources.Designer.cs.dll
............\............\...\...\.....\WindowsGame1.csproj.FileListAbsolute.txt
............\............\...\...\.....\WindowsGame1.csproj.GenerateResource.Cache
............\............\...\...\.....\WindowsGame1.exe
............\............\...\...\.....\WindowsGame1.pdb
............\............\...\...\.....\WindowsGame1.Properties.Resources.resources
............\............\...\...\Release
............\............\...\...\.......\TempPE
............\............\Program.cs
............\............\Properties
............\............\..........\AssemblyInfo.cs
............\............\..........\Resources.Designer.cs
............\............\..........\Resources.resx
............\............\WindowsGame1.csproj
............\............\WindowsGame1.csproj.Debug.cachefile
............\............\WindowsGame1.csproj.user
............\WindowsGame1.sln