7 Online slot symbol behaviours during feature rounds

Feature rounds introduce special symbol behavior that differs clearly from the base game. These modes activate temporary rules that raise win potential and change how the game feels. เว็บสล็อตวอเลท offers free spins, bonus games, or timed modifier phases during these rounds. Symbols can transform, expand, or gain higher values while the feature is active. The limited duration makes these rounds feel separate and rewarding compared to normal play. Each behavior supports a specific role within the game mathematical structure.

1. Sticky symbol persistence

Symbols designated as sticky remain locked in position for multiple spins within the feature round. Once a sticky symbol lands, it stays fixed while the remaining positions continue spinning normally. Additional sticky symbols can appear on subsequent spins, gradually filling the reels. The accumulation creates increasingly valuable combinations as more positions lock into place. Sticky symbols typically include high-value icons or wilds that maximise winning potential.

1. Walking wild movement

Walking wilds shift position with each spin, moving one reel left or right during the feature. A wild landing on reel three moves to reel two on the next spin, then reel one after that. The walking pattern continues until the wild reaches the edge and disappears. Some games spawn new walking wilds periodically, maintaining an active wild presence throughout the feature.

1. Multiplier value escalation

Symbol multipliers increase progressively during feature rounds rather than maintaining static values. Each winning spin might boost the multiplier by one level, growing from 2x to 3x to 4x consecutively. Some implementations double the multiplier with each win, creating exponential growth potential. The escalation continues until the feature round ends or reaches a predetermined maximum.

1. Symbol upgrade transformations

Low-value symbols convert into medium-value symbols randomly or after specific triggers. Medium symbols transform into premium symbols when landing in stacked formations. All regular symbols might upgrade to the next tier simultaneously at feature start. Gradual upgrades occur spin-by-spin, improving one symbol type per rotation. Transformation behaviours enhance average payout values during feature rounds substantially.

1. Duplicate symbol cloning

When specific symbols land during features, they clone themselves onto additional reel positions. A premium symbol appearing on reel two might duplicate onto reels three and four simultaneously. The cloning creates instant matching combinations across multiple paylines. Some games limit cloning to certain high-value symbols; others allow any icon to duplicate.

1. Expanding coverage zones

Symbols designated for expansion grow to cover multiple positions beyond their original landing spot. A single symbol might expand to fill an entire reel vertically or spread horizontally across adjacent reels. Expanding wilds prove particularly valuable, creating wild coverage across numerous payline intersections. The expansion occurs immediately upon landing, before win calculations execute.

1. Collection and conversion

Certain symbols collected during the feature round trigger conversions when reaching specific quantities. Collecting ten special symbols might convert all instances of a chosen regular symbol into wilds. The collection persists across all feature spins, accumulating toward the conversion threshold. Visual meters typically track collection progress, showing players how close they are to triggering the conversion.

Feature round symbol behaviours distinguish special modes from standard gameplay through dramatic mechanical shifts. The variety of possible behaviors ensures that different games offer unique feature experiences. Players often choose games based on their preferred feature round behaviours.