Game:

Mario Kart Wii (2008)

Duration: 0:00

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11

Only during online matches, it's possible to keep trailed items, such as triple shells or bananas, after being hit by the Lightning, which normally makes you drop those items.

To do it, keep your trailed items and then get a Thundercloud from an itembox. While the Thundercloud image is on-screen, the other player must use the Lightning. If done correctly, you will get hit, but will still keep your trailed items as if nothing happened.

This will only work while the Thundercloud image is displayed in your screen when getting said item, giving you a couple seconds for this to be performed correctly. Getting hit by the Lightning before or afterwards won't work.
Likewise, this will only work during online matches. This won't work in Local multiplayer, even if you get hit by the Lightning while the Thundercloud is on-screen.

The reason why this happens is because of some checks present in the beginning of function 0x80798a30 (PAL). This function will only allow you to drop your trailed items if your not online at all or if you are online, but a variable that we'll call "Displayed Item" is set to "None".

When using most items, the "Displayed Item" variable is always set to "None", allowing the game to drop your items. However (from what I know) this variable is set to a different value in the following circumstances:
When using the Thundercloud, only while the icon is on-screen.
When you use a Bullet Bill, while it's activated.
When using a Blue Shell, only during one frame, the moment you throw it.

Since it's not possible to keep trailed items while using the Bullet Bill, it means that this oddity can only be seen when using the Thundercloud.

Credits to ‪@Rerim47‬ for bringing this to my attention!
Source:    • Mario Kart Wii is Weird  

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