I don't know.  All it would take is a little 'translation'...
 	An alien hunter comes to Earth after the most dangerous prey -- 
 Saiyajin.  (What else?)  He comes with a challenge -- if they can stay 

alive 

 long enough to find an object he has hidden on an uninhabited planet, he 
 won't destroy Earth.  There are several ways you can take this -- maybe he 
 has presented similar challenges to champions of other planets, and only 

the 

 planet whose champions gain the goal will survive?
 

Considering you're messing around with Saiya-jins, I'd think their ego would 
kill them first before the Hunter does.  Of course, if you mean Goku. . . 
well, I'd think he'd eat the Hunter out of it first. . . 

Bleh!  Bad attempts at humor. . .

Juuchan, the chibi jinzouningen
"I'm gonna rip your lungs out with a [SPORK!!!]"
						--MCTFF Ultra and 
							lunch time at school.