The exact identity of the bonus will depend on your progress in Flip Champs, but, as WayForward's email announcement notes, "Whether you bought it, beat it, or rank among the best, a bonus awaits every MFC player." If you don't want to feel left out, you can still buy Mighty Flip Champs now and work on it until Shantae's October 4 release. For that matter, there's nothing stopping you from working on Mighty Flip Champs after Shantae's release.
