Hillbilly Whack!

Hillbilly Whack! cheat codes: 
If you go to the single player sub menu - you can enter in these
codes to load levels. Each level code is also present on the
instructions screen for that level.
pigpede   - level  2
yetis     - level  3
twoseater - level  4
caverns   - level  5
forest    - level  6
swamp     - level  7
chickens  - level  8
factory   - level  9
rooster   - level 10
maze      - level 11
clem      - level 12
endmovie  - level 13
bonus     - level 14