From the author:

1) ESPN NFL BLITZ 20-07:

No rules.

2 min quarters

Play speed fast, players are ridiculously large and fast. Tackle ratings through the roof. Athletically, players are freaks. Interceptions
are common, very common, as are fumbles and injuries. No rules, even pass interference is allowed and well, encouraged. All QBs
can sling it 50+ yards. Special moves are enhanced, with RBs and WRs having high break tackle and agility ratings as well. Game is
pass heavy, as Human and CPU running is turned down. Bunch of other stuff as well.