01 One Day, In this Distant World 1:57 02 The Usual World 1:47 03 Ushiromae no Ganbariyasan 1:45 04 Tiny Professional 1:54 05 Door of Memory 2:05 06 New Invaders 1:56 07 Welcome, Customer 1:54 08 Mysterious Mask 1:59 09 The Perishing Earth 2:43 10 Reverse the Situation! 2:05 11 Nyunyunyu 1:44 12 Nyunyunyu~~tsu!!! 1:53 13 The Strongest Enemy, Once Again 3:02 14 Why Do We Fight 3:28 15 To Protect This Body 2:23 16 Natural Killer 2:14 17 Perforin Cannon Punch 2:39 18 We Do Not Allow Any Attacks on Ourself 3:00 19 Their Battle