99rsStorm is a vertical gem synthesis puzzle mobile game centered on drag-and-merge and task delivery. Players drag same-color, same-tier reef gems on a 4x5 board to merge them; each successful merge earns points and spawns new basic gems. After upgrading gems to the highest tier, drag them into the delivery area above and submit the specified types according to task slots to advance task waves and earn bonus rewards. As scores rise, more gem types gradually unlock, board space becomes increasingly tight, requiring trade-offs between merge routes and delivery timing. The round ends when the grid is full. Easy to pick up, with strategic depth and combo rhythm.