The use of vivid colors & eye-catching animations to entice players & evoke a sense of excitement is a crucial component of slot machine design. Auditorslots machine 777y cues and Sound Effects. Another crucial component of slot machine design that affects player behavior is the use of sound effects. To evoke a sense of anticipation and reward, the sounds of spinning reels, winning combinations, & bonus features have all been carefully chosen. **Paylines and Layout**.