8 minute video appears online ahead of next week's launch.
But it also 'feels like a bit of a novelty', report says.
Promises to get players "back online within minutes if an outage were to occur".
Many cheap prices until August 24.
Three Fields confirms work is underway on second title.
3DS expected to sell more units later this year thanks to Pokemon Sun and Moon.
But is it limited to the US?
Would join Jake Gyllenhaal in the Ubisoft adaptation.
Was originally planned for launch at the end of July.
UPDATE: First footage of new 'Favela' map revealed.
Xbox One players get a two-day wait for Marvel re-releases.