This is only Monopoly in name. The name and visual trademarks are licensed from Hasbro, but any similarity ends there.
The player whose turn it is spins a spinner. This determines where the player places a chocolate piece representing a property color. When all properties of that color or railroad have been placed, the next player to spin that color or railroad gets to eat all those chocolates.
There are 32 pieces of milk chocolate in the game. The winner is the player who accumulates and eats the most pieces of chocolate properties.