https://www.newgrounds.com/bbs/topic/1458297#bbspost26690915_post_text
How to download Flash content on Newgrounds (Using Chrome)
1 - select the game you want to download on newgrounds (taking pico school as a example)
2 - when you enter the page type view-source: on the tab in the left side and press enter
https://uimg.ngfiles.com/pm/231000/iu_231857_7949491.png
if you made this so you should see something like this
https://uimg.ngfiles.com/pm/231000/iu_231859_7949491.jpg
3 - Hit CTRL + F and you will now see a search bar, search "ungrounded"
https://uimg.ngfiles.com/pm/231000/iu_231858_7949491.png
now copy the link that chrome is marking as orange
https://uimg.ngfiles.com/pm/231000/iu_231860_7949491.png
https://uimg.ngfiles.com/pm/231000/iu_231862_7949491.png
The link should start and end with brackets ""
4 - Paste the link in your tab or new tab
Now you should be downloading the game
5 - Be happy with the game that you downloaded