There are four common levels of difficulty to select from. You may, however, change some parameters such as driving behavior, quick travel rules, and simpler controls at any time throughout the game. The four first difficulty levels are as follows:
The most laid-back atmosphere a game can provide. All of the convenience features are turned on, and the buses are comfortable and simple to maneuver.
More realistic driving experience with some convenience features (speed limiter, simplified ramp, fast travel, etc.)
The driving is a bit more simplified, but “unrealistic” features like fast traveling with buses are deactivated.
No simplification, no convenience features. All controls are manual.