One of my favorite games for the Sega Saturn was Fire Pro Six Man Scramble. I bought six controllers for the console just to force people that came to the kung fu house (usually not to play video games, but to get loaded and go out and have a place to crash within walking distance of various drinking and dance establishments) to play it over and over. Firepro was made by a video game school in Japan originally and has continued on from there.
While 2D and cartoonish, the game is extremely technical to play with vary harsh timing on the grabs and throws. In addition to the wrestling, you can not only create wrestlers, leagues, tournaments and stuff but you can program wrestlers AI as well. The depth of the customization is simply madness. This has screamed to be a PC game for a LOOONG time now, and here it is (in early access).
Also, this version has EIGHT-man battle royales, so dude, yeah.