In this musical track/battle titled "Swap Chase", Denja (a robotic criminal from the 22nd century who swapped bodies, taking on the cute, mainly blue-and-white, ear-less, and compact form of Doraemon, complete with an attached yellow propeller known as the Take-copter (タケコプター), or "Hopter") is in pursuit of Doraemon (who has assumed Denja's large red body). It appears that Denja has retained his red eyes (now placed in the stolen form of Doraemon), just as Doraemon's eyes are present in Denja's body. Denja is determined to eliminate Doraemon (ignoring the fact that Doraemon has his own form while Denja occupies Doraemon's) using an air cannon to launch an attack, while Doraemon is desperately trying to evade Denja's assault in his red body, seeking a way to return to his original form before facing the threat of elimination from Denja. Let's see how Doraemon manages to survive this encounter and reclaim his body!