On the
making of NFL Blitz:
The league accepted, but wanted Turmell to send it a video of all the motion-captured moves before launch. Rather than sending a gameplay video, he made a decision that may have saved NFL Blitz: he sent the league all the animations as depicted in an editor tool, which only shows the outline of a motion-capture figure moving against a dark, dimensionless background. Without any context, the over-the-top hits and tackles were neutered. The NFL either didn't have a problem with what it saw or never watched the tape, because it never said anything to the NFL Blitz team about it again.
