This was a very vivid dream that I had recently.
I was an an amusement park waiting in line for this really big roller coaster. After waiting a while I finally boarded. During the ride I witnessed in the distance a man murdering another man and dragging his body off behind a building. After the ride was finished I asked other people if they saw it and of course no one did. I spoke to the security guards and they said they would keep an eye out for him, acting like I was crazy. After searching around I found the man but he kept disappearing around corners leading me on different paths through the park. Finally I came to an open field with an incline. The man was standing at the very top of it looking at me. Out of the trees in the distance a dragon flew out picked the man up and dove straight into the center of a nearby lake. After that another man walked up to me and told me he was chasing after the same guy and had been for a while. This man was Jiraiya (a fictional character that could morph into toads). We both went to the lake and Jiraiya turned me into a toad and we swam into the lake. After swimming through the lake for a while I came across a medieval village. When entered the village I was no longer a toad. I came across a man to lent me a bird to fly on to explore the surroundings. I couldn't find the man at all. I left the village and proceeded to the end of the lake. There, I found a dam with lots of piping and ladders. I climbed on of the ladders to the top of the dam. At the top the man that I had been chasing was standing there. He told me that he was waiting for me. Then I woke up.

Any ideas to what this all means?

I think the man who was murdered represents a negative part of your personality that you are trying to get rid of, and the man who committed the murder represents a part of you that is healthy and strong.

The rollercoaster in the dream can represent lifes ups and downs, so the dream is saying that you need to deal with the negative influences that are affecting you before you can deal with life's problems.

A dragon in a dream is a powerful symbol. It can represent strength (emotional and spiritual, as well as physical) and freedom. So the dragon can represent the strength that is within you.

The meaning of the dragon in the dream will also depend on what you think of dragons and how you felt when you saw the dragon.

It sounds like you admire Jiraiya in some way. Is that true? If so, what is it that you admire? Would you like to change yourself in any way to be more like Jiraiya?

The images of the dragon flying and then the bird and then you climbing on the ladder all make me think of reaching new heights - having the freedom to do things you haven't done before - and seeing things in new ways.

I think that at the end, when the man says he has been waiting for you, it is about you developing into your stronger, wiser self.