After all these years, and growing up with Windows 3.1, I have seen an entire evolution of computers and software. Touch screens and large resolutions were a pipe dream just 15 years ago. Now it's the norm. Going from a Packard Bell (yes, before HP) that couldn't run 3D Ultra Mini...
For covering huge distances in the quickest time possible use Batman's Grapnel. This valuable gadget lets you zip between buildings, and also comes in handy for neutralizing snipers, or simply dragging a bad guy into the Caped Crusader's clutches.
Always take out armed thugs first. Also when in a fight deflect incoming attacks by pressing the counterattack icon when the virtual button appears on-screen.
Dead bad guys leave credits behind always pick them up.