Dead Rising 2 PSP Cheats and Tips

Right Trigger = Accelerate
Left Trigger = Brake/Reverse
Left Analogue stick = Movement
Right Analogue stick = Moving the camera
Hold both the triggers down to do doughnuts and mow zombies down when they come close

You save a lot of survivors when you do the mission with Bibi Love but be warned, if you fail she will kill her hostages and her self. This is the "One hit Wonder" mission.
You save a woman named Cinda after defeating Antone Thomas in the "Tastes Like Chicken" mission.
Randy is one you already know.
Taming Snowflake counts and can be given as a gift to Katy.
Seymour is the cop you already know about.
And the last one is Brandon he is the C.you.R.E protester that turned mad you save a survivor on that one too.

There is no Mission with a boat in Dead rising 2, only if he is on case zero, that maybe have a boat.

It is in the locker in the safe house, though if you did didn't save the game before you died you will have to do the same again to unlock again, you want the suit of armour!

If your talking about the "Blitzkreig" ,the wheelchair with mounted turrets, you will need the following items:

Wheel Chair Car Battery LMG or Assault rifle or Merc assault rifle.

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Combine the Wheel chair and car Battery first to get the electric wheel chair.

Then combine the "Electric Wheel Chair" and any of the machine guns above to get the "Blitzkrieg".