Undead 13+2 is the first studio album released by Japanese rock band Sadie, released on June 25, 2008 in Japan. The songs are re-recordings of old Sadie tracks. Many of the original tracks are only obtainable through resale. The limited edition includes a DVD with Sadie's music videos, with the video for "A Holy Terrors" being recorded exclusively for this release.

Track listing Disc one "Obstacle Progress" – 2:51 "Meisai" (迷彩) – 5:03 "Mad-Roid" – 3:48 "Confusion" – 3:23 "Under the Chaos" – 4:11 "Children of Despair" – 3:48 "Silent Eve" (サイレントイヴ) – 4:50 "Psycho Culture" (サイコカルチャー) – 4:08 "Grudge of Sorrow" – 4:08 "M.F.P(Malicious Female Pigs)" – 3:34 "Mousou hi Gyaku Seiheiki" (妄想被虐性癖) – 4:16 "A Holy Terrors" – 4:01 "Empty Room" – 4:23 "Barking the Enemy" – 3:29 "Sayonara no Hate" (サヨナラの果て) – 5:41 Disc two (DVD, Limited edition only) "Meisai" (迷彩) "A Holy Terrors" "Silent Eve" (サイレントイヴ) "Crimson Tear"