The saga of the Dreaded Porcupine began in the lab of Alex Gentry, genius engineer and spiked rodent enthusiast. Gentry has some interesting ideas about how the Army ought to be spending its money:
The lameness of Ant-Man could take up a whole other post, but suffice it to say, his bones would be clogging Gentry’s drain to this day, if not for the Wasp. Ant-Man and the Wasp handed Porcupine his first defeat by dousing him with liquid cement, clogging his tubes, and sending him off to the first of many, many stays in prison. Later, he adopted a more modern, streamlined suit (pictured above) shortly before dying. He actually died saving Captain America’s life, and his armor was placed in a memorial case in Avengers Mansion. Which later blew up.
The Porcupine could actually be a pretty formidible villain, if the suit were used by someone more skilled than Alex Gentry. Another Porcupine is currently at large, last seen in Thunderbolts, and he may be a real badass for all I know. At least there's still a Porcupine in the Marvel Universe. Note the date on that piece, though. Like most characters, even this "turkey" has potential.