Unable to download Newgrounds collections and uploads by user automatically

[Logmytech]

I tried to download a newgrounds.com collection using youtube-dl -iltc http://www.newgrounds.com/collection/videogameparodies but it doesn't work.
I get
$ youtube-dl -iltc http://www.newgrounds.com/collection/videogameparodies WARNING: --title is deprecated. Use -o "%(title)s-%(id)s.%(ext)s" instead. [generic] videogameparodies: Requesting header WARNING: Falling back on generic information extractor. [generic] videogameparodies: Downloading webpage [generic] videogameparodies: Extracting information ERROR: Unsupported URL: http://www.newgrounds.com/collection/videogameparodies

I even tried --yes-playlist.
I tried the same for a user profile uploads but doesn't work. Also I used search youtube-dl -iltc http://www.newgrounds.com/portal/search/author/ZONE-SAMA.

All return the same error.

Please add an option to parse newgrounds searches, playlists, collection, by-author etc.

Thanks!