Usually if you fill a tag and then kill another animal of that type you will get fined for it. While on foot, press CTRL + ENTER and type in the name of the animal (deer, bear, etc.) and press [Enter] again. You can now shoot all you want.
During game play, switch to the wilderness tracking view. Press CTRL + ENTER and type footwork to enable cheat mode. Press CTRL + ENTER again. A message will confirm correct code entry. To activate the remaining codes, press CTRL + ENTER during game play. Type one of the following codes, then press ENTER to activate the corresponding cheat:
CHEAT FUNCTION - CHEAT CODE Display kill spots (video screen) - bullseye Additional $1,000 (any screen) - coupon Toggle time (any screen) - cuckoo Remove selected animal (any screen) - destroy Toggle snow (any screen) - flurries or flurry Teleport to map location (map screen) - getthere Display hunter position on map (map screen) - hereiam Successful kill (video screen) - mytrophy Advance to next stand (any screen) - nextstand Advance to indicated stand (any screen) - stand Display offset setting (sighting screen) - offset Teleport to practice range (any screen) - popup Toggle rain intensity (any screen) - sprinkle Display animal as green map dot (any screen) - thereitis Full health (any screen) - tonic