Great little platformer!!! Always a nice choice for a jam because there is so much content you can make with relatively simple mechanics.
I do think you could have done a bit more to elevate the theme relevance. Maybe you are stealing coins to fill a jackpot that you are awarded at the end of the level, but there is some sort of conflict that forces getting every coin to be a risky choice. There could be a time limit, or using the dash costs coins you have picked up - where in both different scenarios the player could be graded on how many coins they have at the end of each level.
The art was really great!! The game was also pretty well polished! BUT, I will say there is a bug where the game crashes if you die then hit play again, which is not the greatest experience as a player. Other than that there were no glaring bugs, and every action had a good amount of feedback. Enemies and platforms were distinct and it was always clear where exactly you needed to go to progress in the level.
But overall great submission!! Excited to see you all improve from here!!