Dance Dance Revolution 4th Mix Plus is an upgrade of DDR 4th Mix, and adds 14 new songs into the mix as well as including several older songs which have received new Maniac step sets.
Dance Dance Revolution 4thMix Plus also features an 'All Music Mode' where players have access to all songs in the game instead of picking music genres.
The menu interface of 4thMix is significantly different from previous versions of Dance Dance Revolution. Players can now choose Single, Versus, or Double modes on a dedicated Style selection screen, instead of the button combination required of older mixes. Players must also choose one of eight genres, which each contain a portion of the total song list. The available songs during the game will be limited to those in the chosen Genre.
The song selection screen depicts a series of seven diagonal song banners on the bottom half of the screen. Scrolling off the right edge of the screen causes the next seven banners to replace the current ones. The top half of the screen displays the current song's background image and difficulty ratings. Pressing the start button chooses the song, and replaces the bottom half of the screen with a difficulty selection menu. Each player may choose to play on Basic, Trick (called Another in previous versions), or Maniac (or Battle, if playing Versus). A player can also modify arrow appearance and arrangement on this screen by performing various "step codes" on the dance platform. As in previous mixes, step pattern difficulty is displayed as a foot rating, but the ratings are no longer given text labels (like Catastrophic for 9 feet).