Kirkhope is the 5th and last "free stage" in Soundodger+. It is hard to hear but there are some vocals in the background of men chanting in the chorus. This is generally one of the favourite songs by fans.
The stage has 5 enemies, one being oddly placed. The 4 normal ones tend to make a boundary while the 5th one shoots bullets like the bubbles at the center during the chorus and bursts in the middle of the song. This song does not have any homing bullets what-so-ever.