Comic Title: Metal Men #20
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: Jun/Jul 1966
On Sale Date: April 21, 1966 Newsstand Date April 21, 1966
Source: House Ad, Batman #181, Page 13

Newsstand Date April 21, 1966
Source: Direct Currents, Batman #181, Page 31

Newsstand Date April 21, 1966
Source: Newsdealer Magazine, V21 #2

Copyright Date April 21, 1966
Source: Library of Congress, Periodicals 1966

Frequency: Bi-monthly
Cover Price: $0.12
Page Count: 32
Editor: Robert Kanigher

Title: "Birthday Cake for a Cannibal Robot"
Pages: 24

Feature(s):
Metal Men (of Earth-1)

Writer: Robert Kanigher
Penciller: Ross Andru
Inker: Michael Esposito

Reprinted In:
Showcase Presents Metal Men Vol. 2 TPB (2008)
Metal Men Archives Vol. 2 HC (2013)

Feature Character(s)

• Metal Men (last appearance in Metal Men #19; next appearance in Brave and the Bold #66)
• Platinum (last appearance in Metal Men #19; next appearance in Brave and the Bold #66)
• Gold (last appearance in Metal Men #19; next appearance in Brave and the Bold #66)
• Mercury (last appearance in Metal Men #19; next appearance in Brave and the Bold #66)
• Lead (last appearance in Metal Men #19; next appearance in Brave and the Bold #66)
• Iron (last appearance in Metal Men #19; next appearance in Brave and the Bold #66)
• Tin (last appearance in Metal Men #19; next appearance in Brave and the Bold #66)
• Nameless (last appearance in Metal Men #19; next appearance in Metal Men #21)

Supporting Character(s)

• Doctor Will Magnus (last appearance in Metal Men #19; next appearance in Brave and the Bold #66)

Villain(s)

• Dr. Yes (Egg Fu's robot twin; no further appearances)
• A giant robot from B.O.L.T.S. (last appearance in Metal Men #15; no further appearances)

Other Character(s)

• A unnamed model (no further appearances)

Cameo Appearance(s)

• Batman (on television)
• Robin (on television)

Synopsis:
Doc Magnus and the Metal Men gather the pieces of the B.O.L.T.S. robot and take them to Doc's lab. While working on the robot, Doc is swallowed as the robot is really under remote control by Dr. Yes, a robot twin of Egg Fu.

When Doc goes missing the Metal Men finish assembling the robot and order it to take it to the leader. The robot brings them to Dr. Yes who brainwashes the Metal Men and Doc. They return to America and are commanded to shout "Down with America". The Metal Men are able to overcome the command by destroying themselves. Then their broken parts attack and destroy the B.O.L.T.S. robot. Doc is released from inside and rebuilds the team.