And really, one shouldn't even have to look for the answer. How miserably grown up does one have to be to question the righteousness of Jazz Jackrabbit? Keep at least a LITTLE of your inner child somewhere!

...to put it more clearly, a great part of JJ2's charme comes from the story's lightheartedness and childish black and white view of evil and good. While such a view is always bad in real life, this story gives you some place to hide from always having to be intelligent and grown up. Childishness is not a wise thing to base decisions on, but a wonderful state to spend your free time in.