Here are some cheats and tips for the game Joe And Mac: Caveman Ninjas.
Replay level:
Press Start, Select to play a level that already
has been completed.
Bonus levels:
Kill all the small dinosaurs before cracking the red egg in
the middle of level 8. A bonus level will begin where your weapon
may be powered up. The bonus level also contains a key that allows
entry to the blue dots on the map. Another red egg that leads
to a bonus level is at the beginning of level 9.
Continue at dinosaur in last level:
If you lose a life inside the dinosaur, select “Yes”
to continue. The map with the last continue location will appear.
Begin game play at that location, then press Start, Select.
The game will resume inside the dinosaur.
Maximum lives:
Return to a level that contains an extra life after completing
it once. Take the extra life and press Start, Select to end the
level. Repeat this procedure to accumulate extra lives.