In the MobilityWare version of Aces Up, you can play on covered cards. This feature focuses on the main rule of removing cards via higher cards. The setup of the game remains the same, however the main rule is slightly altered. While playing the game in the normal ruleset, you cannot remove a lower card of the same suit if the higher card is covered. With this ruleset, you can remove a lower valued card if it is covering the higher valued card of the same suit.