>>8058101Scarlet's legs come off, but that looks like it. Yellow just covers her face and flips her arms back, and the twins are basically in vehicle mode. I can't see anywhere obvious where anything else would have to come off.
>>8058151Based on this image, the tank provides a different pair of arms. Anything else it adds is unknown. The entire tank seems to be optional though, based on the art and the two combined photos we've seen. (Unless something has drastically changed with the design, which I doubt.)
