To showcase these three modes, United again has a system much like all the other Trackmania titles - you choose which of the three modes you want to play, and then you have a choice of five difficulty settings - "Start", "Easy", "Normal", "Hard" and "Extreme". Each of these modes have a selection of tracks to choose from (except Extreme which has one track) and naturally, the harder the difficulty, the harder and usually larger/longer the tracks. In Race mode specifically, you also have the option of choosing which environment you want to race in, such as "Stadium", "Desert", "Coast" and "Rally" to name a few, which determines the tracks and car used. These environments are unlocked one by one when completing the single player Race mode, and they really offer distinct differences from one to another, mainly because cars actually feel very different from one to another now in United. However, with that said, the actual racing/driving gameplay in United is basically the same as it has always been - which means it is very fast, very arcadey, and very fun.