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William and Sly

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Flight 5 Points

Find the wings.

Weather Mage 5 Points

Turn off the rain.

Dominus Lux 10 Points

Slay five darklings.

Deviation 25 Points

Unlock all boxes and switches.

Resolution 25 Points

Complete the game.

Sensitive Nose 50 Points

Find all of the mushrooms.

Sly Fox 100 Points

Earn more than 35,000 points.

Author Comments

JUN 6, 2023

There's now a third William and Sly game! Coming Fall 2023:



JAN 30, 2016

Hey guys, I’ve started work on a possible William and Sly 3. Follow me on facebook for updates! https://www.facebook.com/LucasPaakh/


This is probably my best game to date. I wanted to make something more accessible, as most of my flash games have been too complicated for my family to play. :3

I really hope you guys enjoy it, I think it's the most effort I've put in to anything. A big thanks to everyone who helped me test, and Tom and NG for the sponsorship!

As always, leave a comment! I love reading them.

EDIT: The game has version detection, but YOU NEED FLASH 10 to play it. If you have trouble loading the game, please send me a PM with the details.

EDIT: Because nearly everyone is saying they can't figure out the boss's pattern, I've made a slight change that should make it more obvious. Once the game update is approved I'll let you guys know and you can try again with the new pattern. *Alright it's up now*


If you're getting a black screen after the Newgrounds and Particlasm screens this applies to you. This might also help with the loading bar freezing. This was posted by a Kongregate user (thanks Knork):

"If the game does not load past the ads make sure that ngads.com and ads.newgrounds.com are not being blocked in your hosts file. Which is located under C:\WINDOWS\system32\drive rs\etc

If they are, uncheck the "Read-only" attribute and edit out those two lines."

If this works for you let me know.

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I'm so glad this is still here after all these years... Fond memories abound.

Classic Flash game back in the day. Great for doing a 100% speedrun as a magic fox that collects mushrooms in a forest. William just can't get enough of those psilocybin mushrooms.

Also, I feel like there should've been a 'Destroy All 15 Darklings' medal. Oh well, I guess just meditate on that.

Beautiful, lovely mysterious atmosphere and cute fox. Nostalgic. Sometimes I return just to listen to the ambiance of the music, the wind and the birds whistling in the background.

my fav childhood game ever. thanks lucas paakh. easy controls, nice atmosphere and music

Very intense game

Wow I have to say by just playing this game just a lil bit the "CONTROLS" are very smooth and respond so well so nice job there, the graphics are intense the gameplay so smooth really good work here, the medals some nice choices, I was not very good at them but it was a fun game overall. Keep up the great work and a huge hand to you on achieving some awards for this, that means it really caught the attention of the users.


Credits & Info

4.60 / 5.00

Jul 17, 2009
3:03 PM EDT
  • Frontpaged July 17, 2009
  • Daily Feature July 17, 2009
  • Weekly 2nd Place July 21, 2009