If a Dog is the only survivor left in a party they will become a 'Super Dog' and continue to Canada on their own. Super dogs can use weapons including guns, and receive a number of other benefits.
A Super Dog stands upright to use weapons; when doing this, it is slightly slower than a normal Dog. If it drops the weapon, it runs on all fours and has normal Dog speed. Since a Dog can carry only one weapon, a Super Dog cannot change weapons. While controlling the Super Dog, pressing "C" to change weapons while already wielding one will cause the Super Dog to bark. Barking attracts zombies.