Log-in to Hippo Video with your existing credentials.
Click on Library from the left navbar.
Click All Videos and then select the videos or click on the specific category and select the videos you wish to delete.
When you hover the mouse over the videos you will see the option to select a video at the top right corner of the video thumbnail.
Now, select multiple videos.
Note: The green check on the top right of your video thumbnail indicates the selection.
Then, click on the Delete Selected at the top right of the Library.
Click Yes to delete the selected videos else No to retain.
Note: To select and delete all videos, click on the check box at the top left.