|Complete 'Collect money for Krew'|
The PlayStation 3 and Vita versions of this mission are related to a trophy named "Cha-ching", completing this mission will reward you with a bronze trophy.
A short-burst racing mission through the Port and Industrial Section. You'll have to use zoomers (preferably a single-seated or two-seated zoomer) to get around and pick up the moneybags, although switching often is recommended since the alarm system goes off automatically. There's a 30-second timer for each moneybag (with a few tricky exceptions) and have to be collected in a specific order, with each bag being marked on the minimap as well as easily visible due to a light beam.
Since all the bags are in the lower zoomer zone and with the Krimzon Guard already on your tail; don't bother with flying higher level. The most annoying threat is being downed by a HellCat zoomer which costs valuable time. Also make sure to slow down when going for a moneybag since the next one often requires a sharp turn.
The only really tricky bag is the eight one; after collecting the ninth (right before the Slums) you'll need to make a U-turn immediately! The next bag will be right behind you but there's a 10-second timer making this the only difficult one. Once you complete the mission, head back to Krew for a new weapon upgrade.