| CPC G07F 17/3213 (2013.01) [G06F 7/588 (2013.01); G07F 17/3258 (2013.01); G07F 17/3267 (2013.01)] | 15 Claims |

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1. An electronic gaming device comprising:
at least one memory with instructions stored thereon; and
at least one processor in communication with the at least one memory, wherein the instructions, when executed by the at least one processor, cause the at least one processor to:
determine that a first set of reels are eligible to have a bonus symbol displayed thereon based upon a first input amount for a first play of an electronic game, wherein the first set of reels are associated with a first set of unlock indicators;
cause display of the first set of unlock indicators in an unlocked display state to indicate that the first set of reels are unlocked as eligible to have the bonus symbol displayed thereon for the first play, wherein the unlocked display state is an illuminated display state;
provide a first outcome for the first play of the electronic game;
determine that a second set of reels are eligible to have the bonus symbol displayed thereon based upon a second input amount for a second play of the electronic game, wherein the second set of reels are associated with a second set of unlock indicators;
cause display of the second set of unlock indicators in the unlocked display state to indicate that the second set of reels are unlocked as eligible to have the bonus symbol displayed thereon for the second play; and
cause display of at least one reel included in the first set of reels and not included in the second set of reels in a locked display state to indicate that the at least one reel is not eligible to have the bonus symbol displayed thereon, wherein the locked display state is a darkened display state.
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