If you want to make guaranteed money on the Super Bowl, there's a way to do it.
You'll need access to the FanDuel Sportsbook and any site/sportsbook offering the prop "Will there be a defensive/ST touchdown?" so you can bet "NO". William-Hill in Las Vegas for example (they have 109 locations in Nevada) has "NO" listed at -180 and this can be found in other places at similar odds. On the FanDuel Sportsbook you can take both the Rams and Patriots defense/ST at +650 to score an anytime touchdown.
The odds are good enough here that you can win guaranteed money betting both. Here's how to do it.
If you have $1,400 you're going to bet $1,000 on "NO" on "Will there be a defensive/ST touchdown?" For argument's sake let's say that the odds are -200. If "NO" hits, you end up with $1,500, your $1,000 wager and another $500 for $100 profit.
To hedge this, on the FanDuel Sportsbook, take $200 and put it on "Anytime touchdown scorer" for the Rams defense/ST AND the Patriots defense/ST. If either team hits you'll get back a total of $1,500 giving yourself a profit of $100. If BOTH teams hit, you'll make a profit of $1,600.
Shop these odds around although the key here is the two wagers to make on the FanDuel Sportsbook. Odds for the "NO" might be able to be found better than -200 to increase your profit.