It has potential, seriously. Just improve the collision detection - I keep falling through the floor! Change the main character to your own design - Mario...seriously. Add checkpoints and enemies. A pause and mute button. Also, the level design is bland, be more creative! Aside from all those points, its quite decent.
Far too short. Other than that i have very little complaints, like why would you want to wake the box up in the first place, let him have his sleep. Now i realize boxes are inanimate objects and cannot sleep or be awakened...
It looks like you included the notes from a newgrounds tutorial. It clearly has instructions on what to do. (right click, forward, thats how i read it)
 "Mouse Maze"){kind=icon}
 "Idiot Test"){kind=icon}
 "Shadowreign RPG"){kind=icon}
 "Shopping Cart Hero 2"){kind=icon}
 "Fly Hard"){kind=icon}
 "Fly Squirrel Fly"){kind=icon}
 "Trap Master"){kind=icon}
 "Never Ending Game"){kind=icon}
 "Wake Up the Box"){kind=icon}
 "Blocks With Letters On"){kind=icon}
 "X-Cream Beta of Defending Happy!"){kind=icon}
 "Frontier"){kind=icon}
 "Clockwords: Prelude"){kind=icon}
 "Pixelvader"){kind=icon}
 "Bunnie =D"){kind=icon}
 "Animation"){kind=icon}
 "Micro Olympics"){kind=icon}