Girl Power has a chance to be triggered on non-winning game rounds. Moon Princess Slot free game demo from PlaynGo played on a 5x5 grid. Symbols drop down in the grid to form winning combinations. Wins are achieved by getting 3 or more symbols in a row, horizontally or vertically. All rows and columns are active and symbols can be part of multiple winning combinations. The Princess Trinity feature is triggered when the on-screen meter is filled completely. This meter is only filled up using winning combinations of the princess symbols. The wild symbol can be used as part of these combinations. All other combinations do not contribute.