Invulnerability (being invincible or not able to be hurt or damaged): A, B, A, Up, Left, Down, Right
Unlimited Boost: B, A, Down, Up, B, A, Down
The Last 3 Cars: 1, 2, 1, 2, B, A, Plus
Monster Truck: B, Up, Minus, Plus, 1, Up, Plus
Aggressive Opponents: Up, Left, Down, Right, Up, Left, Down
Pacifist (don't hurt others) Opponents: Up, Right, Down, Left, Up, Right, Down
Tiny Opponents: B, A, Left, Down, Minus, Up, Minus
Helium (gas that make the voice high and squeaky): Minus, Up, Minus, 2, Minus, Up, Minus
Moon Gravity (slightly floating):Up, Plus, Up, Right, Minus, Up, Minus
Psychedelic (colorful lights): Left, A, Right, Down,B, Up, Minus
Hope this helps!
P.S. I might have forgotten a couple but I remember they weren't really important or fun
yes
you use a USB chord
go to www.codejunkies.com and www.supercheats.com to find out AR Pokemon Diamond/Pearl codes for the DS
No there are not yet.
yes
Um I don't but if you buy AR DS theres lots of codes like playing as peach or bowser if that's what your talking about
You need a DS Toolkit.
There are a million of them, look them up at codejunkies.com
You need the Trainer Toolkit.
You need to have an action replay device.
621342342343334242e4e3242342342300000000000000000000000000000000000000000
Most likely yes considering dsi plays the same ds games as a normal ds so they;d probably have the same codes. if not then idk why....it'd be stupid to change them in a way