13. Samba De Amigo - 4 hours, 16 minutes
2. M&M's Kart Racing - 2 hours, 5 minutes
Low playtime on Samba de Amigo suggests that few people had the patience to learn the controls or that they just gave up based on (unfair) negative reviews. Oddly, I could not find any screenshots of people failing the game until I searched for the Dreamcast version. Perhaps the game was commonly bought or rented by people nostalgic for the original version who didn't really intend to spend serious time with it. Maybe it was brought out for parties and not touched otherwise. Whatever the case, this entry saddens me.
M&M's Kart Racing truly stinks up the Wii's library. My copy logged about 2 hours just so that I could verify that it was as awful as it seemed. I didn't want to review it unfairly. Unlike the rhythm game, this kart racer looks and sounds terrible. Clearly the bulk of the games development budget was spent on the box art, which seems to have paid off commercially if not critically. It was well-designed to be bought by a loved one as a hated gift.
And for the most part the rest of the list probably could be categorized with one or the other of these game: high presentation games that didn't play well and terrible games with great box art. These are a virtual rogue's gallery of bargain-bin denizens. While there are plenty of terrible games with terrible box art, they just were not successful enough to rack up 50,000 total hours of playtime. Even the worst of the worst that don't quite rate 2 hours per registered user would need to have been put into over 25,000 different Wii systems since their release. That's a pretty impressive number of unit sales.
Given my positive experience with Samba de Amigo, I'd be willing to try out a few of the less-iffy seeming games on this list:
25. Donkey Kong Barrel Blast - 5 hours, 1 minute
22. Cooking Mama World Kitchen - 4 hours, 41 minutes
21. Blast Works: Build Trade Destroy - 4 hours, 40 minutes
20. We Love Golf! - 4 hours, 39 minutes
17. Top Spin 3 - 4 hours, 35 minutes
11. Wild Earth: African Safari - 4 hours, 12 minutes
But only if:
24. The Price is Right - 5 hours