Reel Top Feature Trigger Symbols

Reel Top Feature Trigger Symbols is a novel mechanic featuring special 'Collector' symbols positioned persistently above each main reel.
These symbols are not mere visual elements but interactive triggers.
They activate specifically when a symbol landing on the corresponding main reel below them matches their type.
Upon activation, they initiate the game's core bonus feature, typically a 'Running Wins' or Hold & Respin bonus game.
Beyond triggering, these symbols continue to influence the bonus game's mechanics, offering varied effects like value collection, retriggering, or applying multipliers.