Zup.s.rar -

Add levelX=1 (where X is the level number) for all levels you want to unlock. Launch the game, and the achievements will pop instantly. If you'd like, I can help you:

Right-click in your Steam Library and select Properties > Local Files > Browse . Open the levels.ini file with Notepad. Zup.S.rar

If you want the content without playing through all 65+ levels, you can manually unlock them by editing the game's local files: Add levelX=1 (where X is the level number)