Completing a puzzle typically unlocks the full artwork for viewing in a gallery and allows the player to move to the next level.
Levels generally increase in complexity, featuring more puzzle pieces as the game progresses. File Details (.rar) Memory.Puzzle.Neko.Girls.rar
The .rar extension indicates a compressed file format created by WinRAR. If you have downloaded this specific file, you will need an extraction utility to access the contents: Completing a puzzle typically unlocks the full artwork