How To Unlock The Konami Secret In Excel

Back in 1997, Microsoft was in talks to buy the Japanese entertainment company Konami (which produced such classics for the NES as Castlevania and Contra). To celebrate the impending acquisition, the Excel development team was working on a Contra game Easter egg hidden in Excel.

Unfortunately the acquisition fell through but the development team had already finished coding the Easter egg into the core code. The Easter egg addition was long forgotten and was never removed from the core Excel code but can still be access during the Excel loading screen.

While Excel is loading press Up, Up, Down, Down, Left, Right, Left, Right, B, A on your keyboard.

If you entered the code correctly during start up, you will be able to play Contra from within Excel.

  1. Go to the new tab Contra in the ribbon.
  2. Press the Contra Logo button.
  3. A playable Contra game will appear in the sheet below.

Wow, so much fun! Happy April Fool’s Day!

About the Author

John MacDougall

John MacDougall

John is a Microsoft MVP and qualified actuary with over 15 years of experience. He has worked in a variety of industries, including insurance, ad tech, and most recently Power Platform consulting. He is a keen problem solver and has a passion for using technology to make businesses more efficient.


Subscribe for awesome Microsoft Excel videos 😃

Related Posts

37 Awesome Excel Mouse Tips & Tricks You Should Know

37 Awesome Excel Mouse Tips & Tricks You Should Know

While the keyboard is generally quicker, you shouldn’t completely ignore the mouse. There are also some great time saving mouse shortcuts as well. In this post we’ll take a look at some of the best Excel mouse time saving tips and tricks.

read more
25 Amazing Power Query Tips and Tricks

25 Amazing Power Query Tips and Tricks

Power query is amazing tool that allows you to import and transform data with ease and helps to create repeatable and robust procedures with your data. Here are some tips and tricks to help you get the most out Power Query.

read more



  1. dab on them haters

    i actually tried this

    • John

      Haha, sorry to disappoint you. I think productivity would take a nose dive world wide if it was in there.

  2. Anthony

    Oh man – i tried this too haha

Get the Latest Microsoft Excel Tips

Follow Us

Follow us to stay up to date with the latest in Microsoft Excel!

Subscribe for awesome Microsoft Excel videos 😃