Uchikomatic days is a rather interesting look on how the Uchikomas feel when they are compared to the Tachikomas.
The story begins with a Tachikoma telling the story of how Uchikomas came to be and ends with a band of Uchikomas singing about how they feel towards the Tachikomas. While I could not find subbing for the song, the message was pretty clear. It's basically the ending to the Tachikomatic Days that followed every episode of Stand Along Complex and 2ng gig.
The animation is similar to that of Tachikomatic days, with small clips from Solid State Society thrown in.
The sound is a mixture of the usual Tachikomatic days melodies and the song of the Uchikomas. Both are rather cutely done.
Between the amusing characters of the tachikomas and the new feelings presented in the Uchikomas, the dynamic is pretty interesting.
I'd recommend this to anyone who followed the adventures of the Tachikomas or anyone who wants to see Batou framed in hearts.