Well, I finally found a full HD playthrough of the XBLA version of Perfect Dark, including all of the bonus missions! I hope that someone else can get some enjoyment from this.

Mission 1
dataDyne Central: Defection
http://www.youtube.com/watch?v=eADurs9SNRc

dataDyne Research: Investigation
http://www.youtube.com/watch?v=o-xR-fRcMeY

dataDyne: Central Extraction
http://www.youtube.com/watch?v=swAI4fXqpfc


Mission 2
Carrington Villa: Hostage One
http://www.youtube.com/watch?v=zcle2vfWzyc


Mission 3
Chicago: Stealth
http://www.youtube.com/watch?v=1ZG56iNOuQc

G5 Building: Reconnaissance
http://www.youtube.com/watch?v=iRR7EwBFxQ8


Mission 4
Area 51: Infiltration
http://www.youtube.com/watch?v=-r1D_fIyBO8

Area 51: Rescue
http://www.youtube.com/watch?v=GtHX_RkuSdw

Area 51: Escape
http://www.youtube.com/watch?v=OomxpdUGqpc


Mission 5
Air Base: Espionage
http://www.youtube.com/watch?v=MfyEt3TCd00

Air Force One: Antiterrorism
http://www.youtube.com/watch?v=2ayBQ5M39H4

Crash Site: Confrontation
http://www.youtube.com/watch?v=mfCKhSIPT7g


Mission 6
Pelagic II: Exploration
http://www.youtube.com/watch?v=1xAhhN1tND8

Deep Sea: Nullify Threat
http://www.youtube.com/watch?v=rZuiaHsxLos


Mission 7
Carrington Institute: Defense
http://www.youtube.com/watch?v=aUJMdhKnIdU


Mission 8
Attack Ship: Covert Assault
http://www.youtube.com/watch?v=2kUSOWS58d4


Mission 9
Skedar Ruins: Battle Shrine
http://www.youtube.com/watch?v=GvtSp-9KtBc


Bonus Mission 1
Mr Blonde's Revenge
http://www.youtube.com/watch?v=Xb4S5rI7iug


Bonus Mission 2
Maian SOS
http://www.youtube.com/watch?v=aY3dLgvb2Xs


Bonus Mission 3
WAR!
http://www.youtube.com/watch?v=4GhdAF_MxZ8


Bonus Mission 4
The Duel
http://www.youtube.com/watch?v=0sI0I_7M_uA