There is a distortion of graphics in the game ... Try to fix it like this: Press the Win key on the keyboard (the "flag" at the bottom left), the game will be compressed into an icon. Now click on this icon, the game will recover with the corrected graphics.
If this is a permanent error, then post your question here: https://nolfgirl.net/Unityhq/forums/forum/12-nolf2/
First, install the official American version of the game, for example, at this magnet link:
magnet:?xt=urn:btih:44429295071B47F4699594371E724D8D2E6FCB0C