Wild Chicken

A Collection Meter is a system where a progress bar or gauge (meter) is present on the game screen, which fills up each time the player collects specific symbols or performs certain actions. The core of this feature is to provide the player with a long-term goal that goes beyond the success/failure of a single spin. When the meter is full, an instant prize or a special bonus is awarded as a reward. This provides players with a growth-type fun, similar to 'leveling up' or 'completing a quest'.

Growing Symbol is a highly visual, progressive feature, primarily used in bonus rounds like free spins, where thephysical size of a designated special symbol (usually a wild) progressively increases (e.g., 1x1 → 2x2 → 3x3) each time a specific condition is met. The core of this feature, unlike a 'Growth Multiplier' where a number increases, is that the'size' of the symbol itself gets bigger. This clearly shows the player that the bonus round's potential is strengthening and makes them anticipate the explosive rewards upon reaching the final stage.