Here is part 45 of my walkthrough of Crystalis for the NES.

It goes from the point where the hero enters the Tower in the Sky up to the point where the hero & Mesia exit the Tower in the Sky as the final countdown of the meltdown self-destruct sequence is taking place.

Areas explored in this video:

Tower in the Sky: The First Floor, the Second Floor, the Third Floor, the Fourth Floor, Mesiaâs Chamber, the Fifth Floor, and DYNAâs Chamber.

What you'll find in this video:

-How to proceed through the various floors of the Tower in the Sky.
-The hero getting a message regarding his & Mesiaâs roles in the creation of the Tower in the Sky & the preservation of their lives.
-The hero getting a message regarding the truth about Azteca.
-The hero getting Crystalis after Mesia combines the Sword of Wind, the Sword of Fire, the Sword of Water, and the Sword of Thunder.
-The hero getting one final message from the fellow scientists on the team that created the Tower in the Sky about the ambitions in creating the Tower.
-How to destroy DYNA, the central computer of the Tower in the Sky.
-The hero thrusting Crystalis into DYNAâs main reactor.