Well, I already fixed all possible things that could cause loading errors. Try to use different browser - e.g. Google Chrome, or check whether the game is working on other websites.
Tried a couple of times, just keeps telling me I've failed even after I've found everything. Also, can't click new items until the last one I found finally disappears. Nice idea, needs refinement though.
Do I need to use a particular browser just to play? First boss doesn't seem to work on Firefox, as soon as the right click is made the yellow outline moves.
 "This is the Only Level 3"){kind=icon}
 "Clicker Heroes"){kind=icon}
 "A Dance of Fire and Ice"){kind=icon}
 "Lucky Tower 2"){kind=icon}
 "Barons Gate 2"){kind=icon}
 "Royal Warfare"){kind=icon}
 "The Last Stand: Union City"){kind=icon}
 "Valthirian Arc 2"){kind=icon}
 "pandas BIG adventure"){kind=icon}
 "Escape From 26"){kind=icon}
 "Mystery of the old House 2"){kind=icon}
 "Endless War 5"){kind=icon}
 "Legend of the Void"){kind=icon}
 "ButtonHunt 3"){kind=icon}
 "Dawn of the Dragons"){kind=icon}
 "Burrito Bison"){kind=icon}
 "i saw her standing there"){kind=icon}
 "Liquid Measure 2"){kind=icon}
 "Pillage the Village"){kind=icon}
Well, I already fixed all possible things that could cause loading errors. Try to use different browser - e.g. Google Chrome, or check whether the game is working on other websites.