Menu
Original text by YamiHoshi.
All info
Like Title, which is the Alpha version of the Title screen, Menu is the Alpha as well.
That’s right!
The Mario Kart DS Beta ROM uses E3 Menu as the default menu system, not Menu!
Menu is a really interesting file, as it contains a lot of stuff, which is not seen before.

This is the Alpha Character Select.
The Star background has been seen the entire Menu.
Note the position of the characters.

The Cup Select screen.
Retro Cup is called “Old Days Grand Prix” here.
And you’ll also see that the Menu was full back then already, which explains why all Final Tracks were available already.

The CC Select Screen was also available.
But for some reason, its file name includes “Displacement”.

Wow, give me a break!
These cars are from Mario Kart Double Dash for GameCube!
Could it be? MKDS is based on MKDD?

Let’s see, a One Play, Everyone Play, Records, Options… and Back?
Why’s everything so MKDD based?
Were the title screen and this menu on 2 different places?

Grand Prix, Time Attack, VS, Mini Games, Mission Run, Back.
Note that Mini Games is the Japanese version of Battle.