Yeah, they start off as a newborn, and over time ( a few battery cycles ) will learn to walk and begin to explore. They
can detect edges of tables, but it’s still best to keep an eye on them. Solid floors and tables are best, they can walk on carpet, but may have difficulty if it’s too thick.
As far as I’m aware, they don’t sing to music. But will sing on their own at times. Petting under their chin will also make them begin to sing

...They can play pre-made skits, if one is put on an SD card ( though they require card with at least 32MB, but preferably under 1 GB. ) which will play a song and animation, making it look like they’re singing/dancing. The forum has a few skits in the download section. It’s been like 10 years since I ran one, so I don’t remember if there’s more to it.