WWE SmackDown! vs. Raw 2006

Use undertaker and use your finishers a lot.

First, put the difficulty on Easy, and Momentum to Fastest.

Use Stone Cold and stunner whoever gets in the ring. Keep taunting whenever you eliminate someone.

Settings:
Whatever level is needed for this challenge (either easy or normal)
Fastest momentum gain
Make sure KO is ON during the pre-match setup (believe it's a default)

Wrestler to use:
I used a CLEAN CAW, and his alt finisher is the KOing Tombstone Piledriver

Maneuver:
Climb to top rope (usually upper right)
Hit a dive off the rope, should max out momentum
Hit the KO-finisher
Refresh stamina a little while jobber lays down, be on top right turnbuckle before next jobber shows up.

90% of the targets will show up from right side of ring, so you are already lined up for your next diving move...

Play as Triple H

Use his spinebuster (O + Left then O + Right)
Pin

If it doesn't work, try the same again, if they're a very durable superstar (Kane, Undertaker etc...) then work up a finisher, setting Trips to clean and using diving attacks works too.

There is no end to this match. you just gotta keep going. I once played a slobber knocker for three hours until i just quit the match

It ends after 99 actually.

Use Triple H turn him into clean superstar then beat someone down and climb the turmbukle jump on them and you will have a finisher use it and do it again and again Enjoy