Piggy Billion

An Instant Prize Symbol is a special symbol whose role is to pay a set cash value or bet multiplier just by appearing on the reels. The core concept is that it provides a direct reward by its mere presence, without the need to form a winning line like regular symbols. It is often called a 'Coin' or 'Money Symbol' and serves as the most basic 'material' in various bonus features of modern slots.

A Conditional Instant Prize is a special system where, even if instant prize symbols (like coins) appear on the screen, the prize is not paid out on its own. A reward is only paid if a separate, specific 'Collect' symbol appears at the same time. The core of this feature is to add a new goal and tension to the base game by imposing a 'condition' that two elements—the 'instant prize symbol (the lock)' and the 'collect symbol (the key)'—must appear within a single spin.