Most use surprise-style unboxing: layered "10 surprises" setups that hide a doll and a mini pet inside plush costumes or stacked elements, blind capsules with mystery pet figures, and interactive release mechanics (for example, pressing a figure to reveal puppies).
Many use water-based color-change: you add cold or icy water (sometimes from a small bottle) to trigger visible color or detail changes. Examples include potty pads that change from white to rainbow and dolls whose faces and mini pets' eyes change with cold water and revert with warm water.
Most of the reveal toys are labeled for children aged 3 years and up.
Typical materials are plastic for dolls and miniature pets and polyester for plush costumes or soft components. Collectible mini pets may be either hard plastic or flocked (soft‑finished) figures.
Poseability varies by set: some reveal dolls are articulated or described as posable, while several other playsets are noted as having no articulation.