How does the time interval feature work?

Use the Time Interval feature to fine tune difficulty. The time interval is the amount of time between sounds. You can increase the time interval in 5-second increments from 5-40 seconds. Every 5-second increment makes the game just a bit more difficult. There’s also a “Mystery Time” setting that makes the time interval random. This feature also slows a dog down so they have to work longer and eat slower.