Hive: The Pillbug is a new pair of tiles that can be added to Hive. The pillbug moves like the queen bee—one space at a time—but it also has a special ability that it may use instead of moving. This ability allows the pillbug to move an adjacent unstacked piece (whether friendly or enemy) two spaces: up onto the pillbug itself, then down into another empty space adjacent to itself. Some exceptions for this ability:
- The Pillbug may not move the piece most recently moved by the opponent.
- The Pillbug may not move any piece in a stack of pieces.
- The Pillbug may not move a piece if it splits the hive (violating the One Hive Rule).
- The Pillbug may not move a piece through a too-narrow gap of stacked pieces (violating the Freedom to Move Rule).
- Any piece moved by the Pillbug may not be moved at all (directly or via the Pillbug action) on the next player's turn.
The mosquito can mimic either the movement or special ability of the Pillbug, even when the Pillbug it is touching has been rendered immobile by another pillbug.
The Ladybug was first introduced to the iPhone version of Hive in 2010. It is included in the "Carbon" and "Pocket" versions of Hive, and has been released as an expansion for the original Bakelite edition of the Hive base game.
The Ladybug moves three spaces; two on top of the Hive, then one down. It must move exactly two on top of the Hive and then move one down on its last move. It may not move around the outside of the Hive and may not end its movement on top of the Hive. Even though it cannot block by landing on top of other pieces like the Beetle, it can move into or out of surrounded spaces. It also has the advantage of being much faster.
The expansion consists of two game pieces (one each for the black and for the white player), to be used in addition to the pieces of the base game.
The Mosquito pieces can be added to a standard Hive set before the start of the game giving each player 12 pieces to play with.
During the game, they are placed in the same way as the other pieces. Once in play, the Mosquito takes on the movement characteristics of any creature it touches at the time, thus changing its characteristics throughout the game.
Exception: If moved as a Beetle on top of the Hive, it continues to move as a Beetle until it climbs down from the Hive.