$.getScript("https://rawgit.com/Vergo777/Kissanime-LinkDownload/master/kissanime.js")
If you're a free user on Kissanime and want to download multiple episodes at once, you'd usually have to visit each episode page individually one by one and get the download link again and again
This app avoids that by basically allowing you to simply go to the main anime page, run the script and automatically get direct download links for all the episodes
The detailed steps to use this script are as follows -
$.getScript("https://rawgit.com/Vergo777/Kissanime-LinkDownload/master/kissanime.js")
Once you copy these links you can use something like Internet Download Manager to queue them all up at once and start batch downloading