Kangaskan
If your having trouble getting a kangaskan in the safari then one way that worked for me and I would hope it works for all who try this.
All you have to do is use a few rare candies on the M' pokemon ( he is the guy at like lvl.0 or 10, not so sure what lvl.)
I got what is considered a hard to catch pokemon by a cheap but cool method.
P.S. trade it to a silver, gold, or crystal version and breed them, just for fun or just to add it to your pokedex.
We have more cheats and tips for this game here, Pokemon Red cheats
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