It is hard to see what is happening. Two of your images seem to show you doing a media check. However, the media check is known to only work on DVDs, not on USBs. So I’m not sure those images show anything interesting.
For that 3rd image, I have no idea what you did. I don’t recall ever seeing “Have a lot of fun” on a boot screen.
You can check here: Booting the installer to see the screens you should get. And if you select “Installation” then it should boot into the installer.
It looks as if there is something unusual about your BIOS, so that it is not booting normally.
Is your computer set for MBR booting or for UEFI booting? You seem to be getting the MBR booting screens, and I think that “boot:” prompt that you are getting comes from “syslinux” which handles the MBR booting. Did you try entering “linux” on that boot screen (with the DVD installer)?