When Kevin, the founder of 80sTees.com, was younger he wanted a Nintendo Entertainment System and set a goal to save enough money to buy a 13" color tv and an NES. After a very long time he finally got enough money to buy the tv, but was still short the funds on the NES. His parents came through and bought the NES since he was broke. Luckily, the system came with Super Mario Bros and Duck Hunt, which he played diligently over and over because he could not afford any more games. Even more lucky, Super Mario Bros. is probably the best game ever made. Now you can celebrate your video game past with retro Super Mario t-shirts and hoodies!
Goombas, who are the first enemy that you find in the game and who look similar to mushrooms, are actually related to the mushrooms. They are mushrooms that betrayed the Mushroom Kingdom and sided with Bowser. This is what changed their look.