Phaser Fight
Blasting off to new adventures on the STARSHIP ENTERPRISE!

Summary
From the back cover
Welcome aboard, ensign!  You've been assigned to duty on the Starship . Your mission: investigate a mysterious meteor belt with Captain Kirk…or help Bones combat a deadly disease… or fight an alien race with Mr. Spock. You choose – you can beam over to a phantom ship overrun with mirror-creatures… or match wits against a giant alien who want to crush the Enterprise like a bug. But chose carefully or the Enterprise and you could be lost forever!

THIS STAR TREK ADVENTURE BELONGS TO YOU! WELCOME TO THE WORLD OF WHICH WAY BOOKS--WHERE YOU MAKE THINGS HAPPEN!

Background information
 A choose your own adventure book with numerous plots and 28 distinct endings.

Characters
James T. Kirk
Spock
Leonard McCoy
Reader  As a choose your own adventure book, the reader becomes a character

External link 
 

Novels