Continuation desire has been an intensely researched topic. Scholars such as Schønau-Fog mention sensory engagement (Engagement caused by audio, visuals, aesthetics and atmosphere.) as an important component that plays part in the process that influences players to continue playing video games.
Interestingly enough there is an overlap between sensory engagement and a video-game related term - Juiciness. Certain elements found in the sensory engagement category can be considered juicy, for example animations, particle effects, lighting, etc. Although this category is considered important, not much research has been on the individual elements.

This is where this research steps in. The definition of juiciness effects will be established and selected effects will be tested against each other to see whether there is or is not a significant difference between them. Based on research, these effects will be tested inside of a puzzle game environment developed across three iterations. The effects are animations, particles and lights.
A total of 182 players were a part of the three tests - a usability test and two research tests.

Although not statistically significant, the results point in the direction that out of all tested effects, particles have the strongest positive impact on continuation desire.