Payline
A path of active positions; adjacent matching symbols alone may not be sufficient.
Reels, rows and paylines are separate elements in a video slot. Five reels do not mean that every game calculates results in the same way. The game's own rules define the active positions.
Starburst combines jewels with expanding Wilds and Respins. Classic fruit designs use familiar symbols to create a simpler visual presentation. Visual simplicity does not establish a game's risk.
Special symbols should not be confused with ordinary paying symbols. The roles of Wilds, Scatters and bonuses vary by version. Reading each condition helps explain what happens on screen.
Identify the reel and row counts separately.
Check whether the game uses lines, connected symbols or another method.
Understand when a special symbol activates and how long it remains.
Consider these situations separately before deciding how to proceed.

Starburst may appeal visually to someone interested in space and jewels. Repeated visuals help identify its symbols but do not establish a pattern in outcomes.
Classic fruit designs use a small set of familiar symbols. Less decoration does not remove the need to check active lines and applicable conditions.
The theme provides visual identity; outcome rules are defined separately.
No. Substitution limits and expansion conditions vary between games.
It is a theoretical measure across many outcomes, not a refund on your spending.
See this site's dedicated Starburst page for its layout and features.