Sonic Heroes Prototype 10.8 for the Nintendo GameCube was leaked by drx during the February 23rd, 2008. Of the two Sonic Heroes prototypes released by drx on that date, this is the earliest and most changed.
Differences
• By default, 10.8 has the Japanese language selected. But you can select the English language from the game's menu.
• There is a debug mode enabled in this build. It is enabled during a level by pressing L trigger + R trigger.
• The Title screen is different, but it is similar to the E3 Demo released on the Xbox.
• The Main menu is different. You can only move the cursor up and down in the beta, unlike the multiple directional movement available in final. Also, the tabs on the top left of the four options are missing.
• On the team select screen the position of each character is a little off from the final. Not only are they off, but they are in different poses.
• All the music/cgi movies are already enabled for viewing in this build. However, the players don't work for them yet. They are only viewable in story mode (Team Chaotix was confirmed). The movies are quieter and the background music may be missing. Some of them that appear later in the game lack sound effects (Metal Sonic has his normal voice, it's not filtered).
• All of the levels (including the final story areas) are already unlocked on the main menu.
• Most of the level select icons (mostly the boss maps) have the word "TEMP" written on them.
• Even though the text language is Japanese by default, the English voices are enabled as well.
• The main menu music is on the disc, but is unused in this build.
• Any song that isn't finished yet is still used, however in most cases, the adx loops have been configured to loop just the part that's finished (For example, Hang Castle only plays the first 5 seconds and then loops over and over, if played continuously without any loops you can hear the missing intruments).
• Inside the game itself, some of the music has been changed. Hang's Castle (inside/act 2) is missing a guitar, some of the Versus mode tracks are WIP tracks (some of them sound like they came from a DS), and the "beta" Casino Park music that was included on the Sonic Heroes OST is used in here as well.
Some content is taken from SonicRetro.
