This is a compilation of tricks available which you can do on the sidekick II by Danger:

Sidekick 2 tricks:

Soft Reset
@+1+0

Restore Your SideKick To Factory
MENU+SHIFT+X

Display your IP
Jump > Menu > Network Status > Menu+M

Mirror
Menu+Shift+m (Back Key to cancel)

Web Browser Full Screen!
MENU+SHIFT+T (In Web Browser)

Flash Light
MENU+F

To view Syslog:
Jump + Shift + S

Diagnostics:
Go to menu-sytem info-and press menu+shift+D. The diagnostics
checklist will appear and you could either run all of them or individually.

Secret Game:
Press Menu > Settings > About Sidekick > Hold down: Menu+Shift+8
Note: Press the space bar to control the character.

AIM: Set idle Timeout:
In AIM, SHIFT+Menu+i