My favorite weird PlayStation platformer is down to just $1 for the entire series

Do you remember the Oddworld series? If you don't, or you were too young to remember, it was an excellent series that began as a 2D platformer on the PlayStation, then moved into the 3D space, including an FPS spinoff. As you can tell by the name, the Oddworld series is definitely up there in the creativity and strangeness, creating a world that I've never seen replicated in any other game since the PlayStation 1 era. So, when I saw that you can snag every single game in the Oddworld series for one dollar, I knew I had to shout it out.