Are there any available manuals/instructions for the added firmwares?

Take care!

No, sorry we did not write user guides for the firmwares. They are explorational.

If you have any specific questions, I might be able to answer them tho. =)

Not really full user guides but you can get some brief help by clicking the firmware logos in the user interface. E.g.:

Excellent- the spec. of pong parameters was exactly what I was looking for. :O)