The Clouds and Bushes in Super Mario Bros. are Identical

Posted on May 21st, 2019 by Jeremy Meisnitzer

Developers were short on space due to the limited nature of the NES cartridges and recycling assets was a great way to save space.

The size of NES games was on average between 128 and 384 KB. Although some went as high as 1 MB that is still 50,000 times less than what you can store on a Blu-ray disc. Storage capacity was low and any trick to free up space was immensely useful, so can we really blame them for doing a recolour?

To put this into perspective the image of Super Mario Bros. at the start of this page is 186 KB, which is larger than a lot of NES games.