I Ace and collect all of the single-player Goodies in the "Serpent Shrine" level.
"Serpent Shrine" is by far one of my most favorite levels in LittleBIGPlanet. Nice art, cool contraptions, good gameplay, awesome music and even a boss battle! There are a number of other good and even great levels in the game, but few can put a smile on my face quite like "Serpent Shrine".
Most of the time, defeating Sheriff Zapata's second stage takes at least three Timed Explosives. Surprisingly, I managed to defeat him this time with only two.
Revisit: No revisit is mandatory, but I separated the Cooperative Challenge area from the collection of single-player Prize Bubbles to make it easier on myself.
This video covers the Cooperative Challenge (and its exclusive Goodies) in the "Serpent Shrine" level.
I consider this one of the harder Cooperative Challenge areas in the game because the margin of error for synchronizing actions is very small. Figuring out what to do is easy, but having multiple players actually perform it is far more difficult. Having a Checkpoint with one set of extra lives is nice, but this Challenge could have really used a Double Life Checkpoint (the one with two sets of extra lives).
Special thanks goes to the random online player featured in this video. She goes by the PSN ID of TigerLily0587.