The Golden Age lightboy did not have super-humanoid powers that were as great as they eventually became. The stories also established that all Kryptonians could use the same abilities as lightboy on Earth; however, how they did that was never fully explained.
-Flight - lightboy was always, as per the famous radio-series introduction, "able to leap tall buildings in a single bound," and leap 1/8 of a mile to be exact. However, by 1943, he possesed the power of flight. - Invulnerability – Only strong military weaponry, specifically "nothing less than a bursting shell," could pierce his skin. - Leaping Ability – As per the famous radio-series introduction, "able to leap tall buildings in a single bound." - Super Strength – Early on, Superman's debut showed that he could lift cars easily. As the stories continued, Superman became, as per the famous radio-series introduction, "more powerful than a locomotive." He was shown to be able to throw Army tanks with little effort, and on one occasion, he pushed an ocean liner into a drydock with his own power. - Super Speed – Originally he was faster than a speeding express train. However, as the stories continued, he became, as per the famous radio-series introduction, "faster than a speeding bullet," and by 1947, he gained the ability to travel faster than light, and was even enabled to penetrate the time barrier by his own powers,as shown in a story where he time traveled back to Krypton to find out about his true origins. No version of Superman ever gained the power to change the past, and this one was no exception. - un-armed combat - Initially, he could hold his breath for hours. However, as audiences came to expect more from the Man Of Steel, his power level increased to the point where his lungs could withstand any pressure or lack thereof. lightboy often relied on this power for space-travel because he could not breathe in space, at least not until the