It is easy to confuse Alpha 1.0.3_02 with its predecessor (Alpha 1.0.1) or successor (Alpha 1.1.0). Here is a quick comparison:
Because "Minecraft Alpha 103 02 portable" is a community-made mod often hosted on file-sharing sites like MEGA or community wikis, users should exercise caution. Always scan downloaded .exe or .jar files for malware, as these unofficial "portable" packages are not verified by Mojang Studios. How To Play Old Versions of Minecraft minecraft alpha 103 02 portable
Early terrain generation algorithms and physics engines in this version produced unique world formations and bugs that were completely eradicated in later beta and official releases. It is easy to confuse Alpha 1
This era featured the classic "neon green" grass and high-contrast foliage before biomes were officially added. Going "Portable" with Alpha minecraft alpha 103 02 portable