[this version has had its gameplay modified by fans to try to fit more closely with the NA ruleset]
**Possible Spoilers!!!*
Talisman (or Amulet) of Life (Quest 4, reward for completing Quest 3)
Ancient Scroll (Quest 4)
Dragon Eye (Quest 5)
Flame Axe (Quest 8)
Staff (or Rod) of Memory (Quest 11)
Silver Blade (Quest 12)
Freeze (or Frost) Bow (Quest 13)
***
Again, this is based on the interpretation of the Japanese Game System, as in the following file obtained from this thread and also here.





Edit: The above was based upon bastianbux's adaptation of the Japanese HeroQuest into NA format with some modified details and editorial modifications. When he left the forum he requested his file be taken down so I have removed it.
If you are using HispaZargon's translation (which is intended to be more true to the original rather than an adaptation to another ruleset), you will find instead:
Talisman of Lore (reward for completing Quest 3)*
Flame Axe (Quest 8)
Wand of Recall (Quest 11)
Silver Blade (Quest 12)
Freeze Bow (Quest 13)

* The Talisman of Lore in this version of the game doesn't boost mind points, but instead brings one (or multiple) dead heroes back to life (but they lose any gold they have), and can be used over and over again.