| 摘要 |
A game has the potential for multiple levels. The game initiates with a base or first level of one or more symbols. If an advancing outcome is received, the game advances to a second level. In one embodiment, the game builds as successive levels are played, such as by adding one or more symbols at each level of the game. The game may comprise a video-slot type game in which a base set of one or more rows of symbols are displayed and evaluated and where an additional row of symbols is added at each successive level. Advancing outcomes of symbols may comprise designated combinations of symbols along a pay line and including certain symbol positions, such as at least one symbol in a top row of the symbol set.
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