Which Sly Cooper is the Hardest to 100%?

Today we're talking about one of Sony's lost gems...the illusive Sly Cooper franchise...but we're not just talking about it. We'll be dissecting each game to understand which of them is the hardest to 100%. Like and Subscribe if you enjoyed! All the music used in this video is for entertainment purposes only. All rights go the copyright owners. Music Used: Sly 1: A Stealthy Approach Sly 1: A Strange Reunion Sly 1: High Class Heist Sly 1: Mugshot's Turf Sly 1: The Swamp's Dark Center Sly 2: Museum Sly 2: Paris Sly 2: India Sly 2: The Jungle Sly 2 Contessa's Castle Sly 2: Canada Sly 2: Clock-La Battle Sly 3: Blood Bath Bay Sly 3: Opera House Basement Sly 3: Hazard Room Sly 3: General Tsao's Fortress Sly 3: Battle with the Black Baron Sly 4: Thieves in Time Sly 4: Paris Rooftop Sly 4: I smell a Rat Sly 4: Clan of the Cave Raccoon Sly 4: Here Comes the Grizz Sly 4: Go West Young Raccoon Sly 4: Sly Samurai Sly 4: Merry Olde England Sly 4: Forty Thieves Starfox Assault: Briefing 1 Opoona: Mind Control Food Delivery Channel: Ordering Party Food Perona 5: The Days when my mother was there