A possible concise summary is:
A boy named Junior finds a penny that he believes is lucky. He experiences a series of coincidences that seem to prove his point, such as passing a math test, winning a trip to Disney World, and surviving a plane crash and a car accident. His friends Cody and Joseph are skeptical and try to show him that the penny is not really lucky. Cody throws the penny away and tests Junior's luck with a simple game. Junior fails the game and realizes that the penny was helping him. Meanwhile, another boy finds the penny and is happy.
Here are the key facts extracted from the text:
1. The text is a transcript of a video called "SML Movie: Bowser Junior's Lucky Penny" by SuperMarioLogan on YouTube.
2. The main character, Bowser Junior, finds a penny with heads up and believes it is lucky.
3. He passes a math test, wins a sandwich, wins a trip to Disney World, and survives a plane crash and a lightning strike because of the penny.
4. His friends Cody and Joseph are skeptical about the penny's luck and try to prove him wrong.
5. Cody breaks his phone by dropping it from the balcony, while Junior's phone survives.
6. Junior breaks his legs by getting hit by a car, but still thinks he is lucky to be alive.
7. Cody throws the penny out the window to protect Junior from further harm.
8. A homeless man finds the penny at the end of the text.