There's a lot more unused characters that are documented here
An unused character folder can be found within the game's files by the name SanSweet. It has an unusually large collision box when loaded into the game, and every body part aside from hands and face are invisible. SanSweet can be used in-game if a copy of the BENKENOBI.TXT file is inserted into the character folder and renamed SANSWEET.TXT. When opened in model viewer Noesis (shown above), its colors are properly defined. Based on the name and appearance of the character, it can be assumed that it was meant to represent Steve Sansweet, owner of the largest collection of Star Wars memorabilia.
An unused character found in the game's files by the name Spaceman which is from the LEGO Launch Command theme from 1995. The character seems to just be a test character leftover from LEGO Star Wars The Video Game. The face mesh is unfinished as shown by the image above. Some other parts of the model seem to be slightly incorrect as evident by the hands.
Unused Game Mechanic
Found in the game files is this rotating unused object, when the player touches it, the player will get the power up effect from the blue ball. While the change to a blue ball is unknown, it might be reminiscent from the old E3 Demo of Lego Star Wars: The Video Game. Noting that the code for this unused powerup is still left in the game and is still functional, it's just the "powerup" text that is missing.
All four music tracks for Dexter's Diner from the first game can be found in the game's music folder. It is possible that the player would have originally ventured to Dexter's Diner to play through the prequel levels, but all levels in the final game are accessed through the Mos Eisley Cantina, with the diner nowhere to be found.
It seems that it was planned that the Lost Temple level from LEGO Indiana Jones was planned to be playable, instead of just the trailer, as early versions of the music and cutscene audio can be found in this game's audio folders.
Level2 and Level3 share the same ambience track (the silent IJ_AMB_PLACEHOLDER), as evidenced by their respective entries in /AUDIO/MUSIC.CFG.
A simple debug font found in the game's executable.
A default texture also found in the executable.
Leftover PlayStation buttons. The first set are part of a font graphic, and the second set is labelled for both PlayStation 2 and PlayStation 3.
Leftover buttons for Xbox.
Leftover buttons from the Wii port.
Two full screen graphics for the demo version of LEGO Star Wars II. These leftovers are only available in Spanish, French, Danish, German, and Italian. There are also three large legal text graphics included with each language, each of which is in English.