you cant because its to powerful for the dsi and the dsi can't handle it.
You can't.
The DSi XL does not support the use of Adobe Flash and also cannot be installed on the system.
I'm sorry, but the DSI will only support Flash made for Fireball 0.3.0, Wich is no longer available on the adobe website.
There is no way to install flash player for the DSi, because the DSi's hardware just isn't powerful enough.
There will be some things you can't play without the adobe flash player, it will probably say 'flash out of date' or something like that, so press on it and then install it
Open google and search metaface, and open the metaface website http://www.metacafe.com/ click to play any video, then you can install flash player in Opera browser, Really its work i have tried it.
No because when you get to a youtube video it will say you need to download an adobe flash player and the dsi or dsixl or even a 3DS cant download an adobe flash player so no :( but a ps3 can do it :)
On the Wii you can't download adobe flash version 8 (Which you need for most web- sites) because adobe flash version 8 only works with regular computer types, such as Windows and Macintosh. But the wii comes with adobe flash version 7, which works with a few websites.
No, You don't
yes the Nintendo dsi does have an built in mp3 player . you can't view youtube videos on the dsi internet YET because you need Adobe Flash player .
No because you would need Adobe flash player but in the DSi, you can't download anything. Try using home4dsi.net it has loads of watchable videos for your DSi.
You can't download a Flash Player to the DSi.