Definition of «to add some levels»

The phrase "to add some levels" means to increase the intensity, complexity, or variety of something.

Another fun aspect of the graphics is the night driving which adds another level of complexity to the gameplay with 60 frames per second at 1080p which really make this a good looking game. (impulsegamer.com)
It also adds another level of comfort to the seat. (bestcarseathub.com)
I now add diced hearts of palm to it which adds another level of flavor and texture. (raegunramblings.com)
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