  Virtual reality (VR) produces a highly realistic simulated environment with
controllable environment variables. This paper proposes a Dynamic Scene
Adjustment (DSA) mechanism based on the user interaction status and
performance, which aims to adjust the VR experiment variables to improve the
user's game engagement. We combined the DSA mechanism with a musical rhythm VR
game. The experimental results show that the DSA mechanism can improve the
user's game engagement (task performance).
