Pause the menu, go to the cheats screen and enter FPATCH.
Submitted by Dellsta
Cheats
Unverified. When cheats are active, save is disabled to your Xbox footprint. There is a cheat menu for input of the following atrocities ...

MEDIK ... Health refilled
FPATCH ... 1000 balls accrued
AMMO ... Ammunition current is restored
GOBALLS ... Gang heat increased
NOBALLS ... Gang heat decreased
DONUT ... Police heat increased
FLYSTRT ... Police heat decreased
MARTHA ... Time of day changed
RAINY ... Meteorological effect, rain
SHAZAAM ... Meteorological effect, lighnting
TBURGLR ... Vehicle current health restored
BLACK ... Costume effect, black
BLUE ... Costume effect, blue
WHITE ... Costume effect, white
GREY ... Costume effect, gray
TANSHRT ... Shirt effect, tan
TIGSHRT ... Shirt effect, tiger stripes
BLUESH ... As blue effect with shades
WHITESH ... As white effect with shades
GREYSH ... As gray effect with shades
TANSH ... As tan effect with shades
TIGERSH ... As tiger stripe effect with shades
TUNEME ... Scarface theme on constant loop
DOZER ... Spawn bulldozer
OLDFAST ... Spawn antique car
DUMPER ... Spawn dump truck
BUMMER ... Unknown effect (riot?)
666999 ... Unknown effect