15 Gameplay Glitches That Actually Became Features In Video Games

Mario’s Multi-Coin Blocks

There are several blocks in the original Super Mario Bros. that granted the player several coins if they kept hitting this. This would give you a higher score and could provide an extra life. But these multi-coin providing bricks were originally an error by one of the programmers. The developers went back and fixed it, but felt like something was missing, so they added the “bug” back in.