I've got a couple of these tucked away, and am pretty fond of them despite the uneven quality. Looks like the whole series is available at Wowio.com -- http://www.wowio.com/users/product.asp?BookId=1622 -- (though not for me, alas -- Wowio is currently only open to folks who live in the United States).
Someone gave me an old, beat-up copy of The Brain Shockers! when I was a kid, and I do believe it gave me nightmares.
Hope no one will mind my mentioning another comic series available on Wowio as well: Swords of the Swashbucklers -- http://www.wowio.com/users/searchresults.asp?txtSearch="swords+of+the+swashbucklers" -- created by Bill Mantlo and Jackson Guice, with art contributions from Geof Isherwood and Colleen Doran. Bill Mantlo (writer of Marvel comics like Rom, Micronauts, Cloak & Dagger, and The Incredible Hulk) was in an accident in 1992 and will never fully recover; Swashbucklers was put online to try and get a little extra money for the live-in care he requires. I've got a book on Wowio with Smashout Comics, and have been able to take a peek at the numbers, and right now Swords of the Swashbucklers is making almost $95 a day! (More on Swashbucklers at Newsarama -- http://forum.newsarama.com/showthread.php?t=139862 -- if you're interested.)
Someone gave me an old, beat-up copy of The Brain Shockers! when I was a kid, and I do believe it gave me nightmares.

Hope no one will mind my mentioning another comic series available on Wowio as well: Swords of the Swashbucklers -- http://www.wowio.com/users/searchresults.asp?txtSearch="swords+of+the+swashbucklers" -- created by Bill Mantlo and Jackson Guice, with art contributions from Geof Isherwood and Colleen Doran. Bill Mantlo (writer of Marvel comics like Rom, Micronauts, Cloak & Dagger, and The Incredible Hulk) was in an accident in 1992 and will never fully recover; Swashbucklers was put online to try and get a little extra money for the live-in care he requires. I've got a book on Wowio with Smashout Comics, and have been able to take a peek at the numbers, and right now Swords of the Swashbucklers is making almost $95 a day! (More on Swashbucklers at Newsarama -- http://forum.newsarama.com/showthread.php?t=139862 -- if you're interested.)