As you progress through levels in various buildings, you may encounter the following mechanics:
Soil. Match objects over the cells with soil to remove it from the field.
Boxes. Break boxes by matching objects next to them.
Gold Ore. Match objects next to gold ore cells to break it down and earn gold.
Colored Boxes. Match objects of the same color next to a colored boxes to break them.
Chains. To unchain an object, you need to match it or destroy it in some other way.
Honey. Match objects next to honey cells to remove it from the field, otherwise honey will spread onto other cells.
Honeycombs. These will keep leaking honey even if all cells have been cleared.
Step Bombs. Destroy all step bombs before they expire, otherwise they'll explode and fail the level.
Sheep. Match objects under the sheep cells. The sheep will drop to the bottom and disappear from the field.
Portal. Objects that fall into one portal exit from the other one.
Wanted Posters. Match objects next to wanted poster cells to remove them from the field.
River. With each move, the river shifts all objects by one cell.
Soil Bags. If you match three or more soil bags, they'll spill soil on the field. You'll have to remove it.
Ropes. Ropes don't interfere with matching combinations but hinder object movement.
Stones. Use dynamite or line crushers to break stones, then match objects next to their cells to remove them from the field.
Pie. To eat a piece of pie, match the objects in adjacent cells. Once all the plates are empty, they will be removed from the field.
Magnet. Use the magnet to destroy objects in the row it is pointed at. To do so, match objects of the same color next to the magnet. The magnet changes direction with each move.
Lizards. Match lizards to catch them. If a lizard reaches the top, you lose.
Hanging Chain. Match object next to any part of the chain to trim it and eventually remove from the field.
Cookies. Match objects to find cookies hidden under the paper.
Glass Vessels. Match objects of the same color as the glass vessels to fill them with paint. Once a vessel fills up, the paint will spill over and destroy nearby objects.
Grinder. A grinder will help you beat a level. Free the space underneath it to receive bonuses.
Ice. To break the ice, match a frozen object with other objects of the same color.
Winepress. Match objects near the winepress to start it up. Once the winepress is full, it will remove all objects of a single color.
Cart. Lower the required objects into the cart. Once it's full, the smith will remove it from the field.
Paint Jug. Match objects of the same color as the jug next to it to fill it with paint. When the jug overflows, the paint will spill out in the direction the jug is pointing and change the color of the pieces there.