From what I had seen, some parts of the interface are still based on Groove Coaster 3 as if they look exactly the same or some sort. Like Groove Coaster 3, Groove Coaster 4 for the arcades will have the new nagivators, songs and even other stuffs to take a look at.
What's new in Groove Coaster 4 is the modification of the difficulty range similar to what other rhythm games do as well as the stage unlocking system and various online functions. Like Sound Voltex IV, you should be able to purchase/unlock items during the game using the in-game currency. To unlock additional songs will be to go to the game's player site provided that you have your Nesica account and that your account is linked to the Nesica card containing the play data for the game. The shop for unlocking songs is still there although there are changes to the song list. Needless to say, each song is quite expensive to unlock and it takes tons of runs to reach the sufficient amount of in-game currency known as Groove Coins. By taking tons of runs, you are consuming so much money for coins/quarters.
It was a great time regarding the crossover campaigns that happened in Groove Coaster 3 like those using songs from various Taito games or various shmup games which I already attempted in the arcades at that time. Lightning Strikes from Raiden III was one of the songs I attempted like I had a nostalgic memory of having played Raiden III in the arcades. One thing to note is that many of those shmup games involved in those events for Groove Coaster 3 already had the console ports although certain of them started off on the consoles, not the arcades, like Raiden V started off on Xbox One two years ago.
