Here are some I consider to be too hard:
Nick Arcade-The only conceivable way to have a reasonable amount of time for the third level would be to do the first two almost flawlessly. Also, in the third level, all it takes is for one of the two to not be paying attention and the team would lose!
Stump the Schwab-Yeah; I know it's supposed to be hard, but when only 4 out of almost 80 people win it all year, and there are NO consolation prizes except for the 1 winner of the Tournament of Champions, it seems pretty cheap to me.
Shop 'Til You Drop-In each bonus round, there is one prize worth around $800-$1,000, and the ONLY way to win the bonus round conceivably is to get this prize. I have NEVER seen a team win without getting this "most expensive" prize.
Caesar's Challenge (second bonus round)-Unless you nailed those first two or three words almost immediately, that 30 seconds will run out WAY too fast! In my one episode on tape, the person spent almost 15 seconds on the first word alone!
Get the Picture-When they shortened the time to 35 seconds, the team essentially couldn't make a mistake, or they'd lose! Luckily, they'd still pick up some good prizes along the way, but winning this with the time change was darn near impossible!
And one I consider to be too easy:
Lingo (GSN)-Unless you were one of those teams that only got 1 or 2 words, chances are you will most definitely get that $5,000 "Lingo" (I can distinctly remember only three losses since the second season started).
This was fun; I'm interested to see what others come up with!
Anthony