Here are all the stuff you need to get started

The WinRAR programs link download
http://www.rarlab.com/download.htm

Tip:Is best if you extract the Emulator First and the Game Onces that done
Go and Install the Direct X9.0c & VisualC++ runtimes

The Direct X9.0c Download Link
http://www.mediafire.com/download.php?mhbzhmmn0ny

The VisualC++ runtimes
http://www.mediafire.com/download.php?jzyjmy544zy

How to set up your controller

The Minor Dowload for VisualC++ runtimes & Direct X9.0c
http://www.microsoft.com/downloads/details.aspx?familyid=2da43d38-db71-4c1b-bc6a-9b6652cd92a3&displaylang=en

http://www.microsoft.com/downloads/details.aspx?familyid=200B2FD9-AE1A-4A14-984D-389C36F85647&displaylang=en

and winpcap here (if you want to try the bba emulation code

http://www.winpcap.org/install/default.htm

Here the Dreamcast NullDC 1.6 with all the Bios and Plugins
http://www.mediafire.com/download.php?mqzzmdyndkh

Here The Game: Ikaruga compress 20mb and uncompress is 750mb
http://www.mediafire.com/download.php?jdfzihwxlmk

Here are web site to find More games
http://snesorama.us/board/forumdisplay.php?f=24

http://www.emuparadise.org/Sega_Dreamcast_ISOs/1

How set up your controller


how to set your xbox 360 controller


for information of trouble shooting on controller issue go here
http://forums.ngemu.com/nulldc-discussion/95446-nulldc-1-0-0-beta-1-6-07-11-2007-update-10.html