Originally Posted by Viperspike
I found a couple of the knife flights harder than the under the bridge challenge. I am more comfortable in the helicopter and spend way more time in them. I remember one knife flight required me to wait until I passed a building and then drop low to knife between two buildings very close to the ground. That one drove me mad.
I know the knife flight you're talking about, it's the one where you can get three in that one fly over, that took me a couple attempts too but overall the simple flying mechanics on this game thankfully made it not too much of a struggle. I quite enjoyed it actually.