3.4  Why bother collecting all the secrets?

    For the extra ammo and equipment!  In TR1 and TR3 you get a little
    gift with every secret you find but in TR2 you have to collect all
    of the 3 dragon shaped secrets in each level before you get a cache
    of extra ammo (and occasionally weapons) to assist in the
    annihilation the bad guys. Contrary to many other TR players beliefs
    I personally consider secrets very much worthwhile collecting - I
    wouldn't have been able to complete TR2 without all the additional
    ammo I gathered from them.