It's all up to chance.

The way this works is that the maze itself is decided by the path you take through the
maze. You should remember that there are the portals of blue or red lights that lead you
to the next room and therefore to the next puzzle. The game itself randomly sends you to
a pattern of portals, and this random pattern is what determines which form of Chrondia
you fight. There are about 6 forms to Chrondia (don't quote me on that) and each form
will give you something different. As impossible as it seems, you must have gotten the
same amount of blue and red portals each time you went through the puzzles. Hey, maybe
fifth time's the charm. Later.