Here is a game for PICO DAY 2010 as well as a tribute for Castle Crashers:

Castle Crashers: Fatal Oblivion

Story:
A possessed knight goes on rampage to the castle. All fantastic knights resemble to stop him once and for all. Can they do it?
Unfortunately, here you play as the bad guy. Show them you are unbeatable!

Updates

-10 May 2010
Adding instruction page
New foe!
New Melee combo system!

-3 May 2010
Adding Ads system

-30 April 2010
Release the game

Special thank for;
-The Devil’s garage for his helpful assistance. Without you I would never have finished the game.
-Nemesis Theory for the encouraging tracks. They rock!

And HAPPY PICO DAY 2010!!

Version

1.0.3

Release date

2010-04-30

Alt titles

Castle Crashers: FO

Source

https://www.newgrounds.com/portal/view/534602