 Like college football, it recognized the two-point conversion (that was, at that time, only recognized in the CFL at the professional level) that would not be put into NFL rules until 1994.For its final season in 1985, a method of challenging officials' rulings on the field via instant replay (using a system that is almost identical to that used by the NFL today; the NFL would adopt its first instant replay system [but in a different form than its current one] in 1986).As of August 2015, there are eight USFL alumni who are enshrined in the Pro Football Hall of Fame