Right, the Saturn just like early versions of the PS1 had an opening for the famous "swap trick". I never used it myself other than on the PS1.
The Pseudo Saturn Action reply hack to circumvent disc checks was only within recent years released.
(Also, someone had downvoted you, which I disagree with completely. If I'm wrong, I'm wrong. So, here's an upvote to balance it out.)
I also jumped on the XBMC and Xecutor modchip for the original Xbox when that came out. Another mind blowing time in computer gaming.