Here are 703 rooms of pure mapping joy. Mega-Maze First Floor is actually 704 rooms. I leave it to you to find the missing room. 8*)

+  +--+  +--+--+--+--+--+--+--+x-+-x+--+--+--+  +--+  +  +  +--+  +  +  +-x+
|  |     |     |     |  |                    |  |     |  |     |  |  |     |
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   |        ^  |  |  |     |  |  |        |        |  |  |  |     |  |     |
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|  |     |  ^     |     |  |        |     |     |  x     |  |  |  |     |  |
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         |     |  |     |     |  |     |     |  |  |     |     |     |     |
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   |  |  |                          |     |        |        |     |  |
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|  |  |     |  |  |  |  |  |  |     x  |  |        |  |        |     |  |  |
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|  |  |  |     |  |  |  |  |  |     |        |  |     |        |           |
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|        |  |  |  |  |        |     |  |     |  |  |  |  |  |  |           |
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|     |  |        |  |  |  |  |  |                 |     ^        |  |  |
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|        |              |  |  |  |     |        |  |  |              |     |
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|     |        |     |  |     |  |     |  |     |        |  |  |  |     |
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|  |     |  |     |     |     |  |  |     |  |  |  |  |  |  |  |     |  |
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|  |     |     |  |     |  |  |     |  |        |  |  |  |  |     |     x  |
+  +  +--+--+--+--+  +--+  +--+--+  +--+  +--+  +--+--+--+--+  +--+  +  +  +
|     |  |  |     |  |  |  |     |  |  |     |        |        |     |  x  |
+--+  +  +  +--+  +  +  +--+  +--+--+  +--+  +  +  +  +--+  +--+  +--+--+--+
   |     |  |  |     |     |  |              |  |  |     |  |     |  |  |  |
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      |                 |  |  |     |  |     |     |           |  |  |  |
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+--+--+--+--+--+  +--+  +  +  +  +--+  +  +--+  +--+--+--+--+  +  +--+--+  +
            |  |     ^  |  |  |     |  |  |           |  |     |  |     |  |
+--+--+--+--+--+--+--+--+--+  +--+  +--+--+--+--+--+  +  +--+--+  +--+  +  +
|     |     |  |  |     |  |  |        |  |     |     |     |     |        |
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|  |     |     |           |     |  |  |     |  |  |     |        |  |     |
+--+--+--+  +--+--+  +  +--+  +--+  +  +  +  +--+  +--+  +--+--+  +  +--+--+
|     |        |  |  |     |        |  |  |  |  |     |           |  |     |
+  +  +--+--+--+  +--+--+  +--+  +--+  +--+  +  +--+  +  +--+--+  +  +  +--+
|  |     |     |     |     |     |  |  |  |  |              |  |  |
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            |           |  |     |     |  |        x     |  |  |  |  |  |  |
+--+  +--+  +--+  +  +  +  +--+  +--+--+  +--+  +  +--+--+--+  +  +  +--+--+
|  |     |        |  |     |     |     |  |     |     |     |           |
+--+--+--+--+-x+--+--+--+--+  +--+  +--2  +  +--+--+--+--+--+--+--+--+--+--+
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                                       x
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                                       1

1 = Dylan's Area {15-25}
2 =  Portal to Mega-Maze Basement {60-99}  [MAP NOT YET AVAILABLE]

Key to Mystic Adventure ASCII Maps