Angry Birds Collection
 

NSIS Script+graphicalinstaller

Version Collection file:
Angry Birds v4.0.0
Angry Birds Rio v1.8.0
Angry Birds Seasons v3.3.0
Angry Birds Space v1.6.0
Angry Birds Star Wars v1.5.0
Angry Birds Star WarsII v1.2.1
Bad Piggies v1.5.1

Can you explain how-to?

from looking at the archive, extract attatchment to harddrive.
look in program folder & install the programs starting with NSIS-2.46-setup.exe, then editor, finally the graphic installer.

Then in the Rovio Entertainment Ltd subfolder you will find all the subfolders for each game. Copy your installed game into each subfolder. Run the setup.nsi ... correct if wrong, but ALL this information should be in initial post as well as a screenshot to show what it looks like ?