Sure... but a sword make a much better weapon that a small plastic block.
No, you cannot text between the Nintendo DS and DSi. However, you can use PictoChat to communicate with each other.
Transfer it from your DS/DSI
Yes, all models of the DS including the DSi models, can communicate with each other using their internal wi-fi.
There are no Dsi game chips but there is a bakugan battle brawlers game for ds
It's fairly obvious - unless you are trying to use an old DS charger with a DSi. All four models of the DS use completely different chargers to each other. If you have a DSi, you need a DSi charger. A DSi XL will need an XL charger too, etc.
If you mean connect with each other in various games, yes. I've connected many times with many of my friends who own a dsi even though I still have a ds.
You can't. A DSI is a whole other system
Yes it can.
No You need a DS/DSI
apart from the 3ds, all ds's can play against each other. so, yes you can.
On a DSi, yes. However, not on other DS models so far...
I have a game I bought fo my DSI (works on other DS too) its called 'Namco Museum DS.'