Hundreds of people gathered in Victory Park in front of American Airlines Center for a chance to find free money Monday afternoon.
Clues as to where money was hidden were posted on Twitter under the Twitter handle @hiddencashdfw.
By 6 p.m., more than 7,700 people followed the account that was opened on Friday.
Stacey Monroe, from Irving, is the organizer of the Dallas event.
"I always had hard times in my life, so I said why not go ahead and do something nice," Monroe said. "I'm like, 'I'm not going to use this money. I'm probably going to go out and spend it; I'm probably going to out to a club; I'm probably going to go out and do something. You know, why not give it to someone who actually needs it?"
Monroe, whose name she chose to fit her new identity, is a transgendered woman on a mission to spread kindness.
Monroe is currently shooting a documentary about her transition. She often blogs about her emotional and physical challenges on this journey.
The latest news from around North Texas.
Monroe created the Dallas scavenger hunt for cash with $140 of her own money and a few donations that brought the total to $250.
The hidden cash movement began in California and has spread across the country.
Last Friday, Monroe tweeted she would bring the idea to North Texas and soon was flooded with thousands of followers.
Monroe said there was no self-promotion involved, that a local radio station picked up on her tweet and revealed that she was transgendered, otherwise she wouldn't have spoken of her transition at all.
Monroe said the money was what she had left over from paying tuition. She figured someone might need it.
Her one request was that those who find the money do something nice for another stranger.
Many people came to Victory Park several hours before the first clue was posted in hopes of finding the hidden cash.
Ten envelopes filled with $20 to $40 were placed in various locations for people to find.
Some people NBC 5 spoke to are appreciative of the free money.
“I have a little bit more of my rent I have to make,” said Jazmon McTear, who came to find free money. “I’m just out here trying to see if they have anything for me or I’ll just play my guitar.”
Police said they did not anticipate any problems during the hunt, but they had additional patrol officers around the Victory Park area just in case.
Monroe plans to do the scavenger hunt again in Fort Worth, but with $1,000 she's received from donations.
NBC 5's Randy McIlwain and Holley Ford contributed to this report.