In Dead Rising 2: Off The Record for the PC, PS3 and Xbox 360, there are even more combo weapons you can make. You can still make all of the combo weapons from the original Dead Rising 2, and most of the weapons from Dead Rising 2: Case West if you have that expansion (minus the Sterilizer and Impact Blaster).
Here is the list of combo weapons you can make, and how to make them.
Bouncing Beauty – Propane Tank + Rocket Fireworks
Cryo Pod – Fire Extinguisher + Escape Pod
Decapitator – Boomerang + Chef Knife
Electric Crusher – Sledge Hammer + Battery
Laser Eyes – Alien Head + Gems
Molten Cannon – Motor Oil + Tennis Ball Launcher
Pegasus – Stick Pony + Rocket Fireworks
Saw Launcher – Saw Blade + Tennis Ball Launcher
Super Massager – Massager + Leaf Blower
Weed Tendonizer – Grass Trimmer + Chef Knife
Laser Gun – Laser Sword + Lightning Gun
Lightning Gun – Blast Frequency Gun (BFG) + Electric Prod
Reaper – Katana + Sickle
Shocker – Defibrillator + Medical Tray
Zap N’ Shine – Electric Prod + Floor Buffer
Air Horn – Traffic Cone + Spray Paint
Auger – Pitchfork + Drill Motor
Beer Hat – Hard Hat + Beer
Blambow – Bow And Arrows + Dynamite
Blazing Aces – Tennis Racket + Tiki Torch
Blitzkrieg – Electric Wheel Chair + Merc Assault Rifle or Light Machine Gun
Boomstick – Pitchfork + Shotgun
Burning Skull – Bull Skull + Motor Oil
Defiler – Axe + Sledgehammer
Drill Bucket – Bucket + Drill
Driller – Spear + Drill
Dynameat – Hunk of Meat + Dynamite
Electric Chair – Wheel Chair + Battery
Electric Rake – Leaf Rake + Battery
Exsanguinator – Vacuum Cleaner + Saw Blade
Fire Spitter – Toy Spitball Gun + Tiki Torch
Flamethrower – Gas Can + Super Soaker
Flaming Gloves – Boxing Gloves + Motor Oil
Fountain Lizard – Lizard Head Mask + Lead Pipe
Freedom Bear – Giant Teddy Bear + Light Machine Gun
Freeze Bomb – Fire Extinguisher + Dynamite
Gem Blower – Leaf Blower + Gems
Hacker – Computer Case + Flashlight
Hail Mary – Football + Grenade
Handy Chipper – Wheelchair + Lawnmower
Heliblade – Toy Helicopter + Machete
Holy Arms – Training Sword + Nails
IED – Propane Tank + Box of Nails
Infernal Arms – Training Sword + Motor Oil
Knife Gloves – Boxing Gloves + Bowie Knife
Laser Sword – Flashlight + Gems
Molotov – Whiskey + Newspaper
Paddlesaw – Canoe Paddle + Chainsaw
Parablower – Leaf Blower + Parasol
Plate Launcher – Cement Saw + Plates
Pole Weapon – Broom + Machete
Porta-Mower – Lawn Mower + Two By Four
Power Guitar – Guitar + Amp
Ripper – Cement Saw + Saw Blade
Roaring Thunder – Goblin Mask + Battery
Rocket Launcher – Lead Pipe + Rocket Fireworks
Snowball Cannon – Fire Extinguisher + Water Gun
Spiked Bat – Baseball Bat + Box of Nails
Spear Launcher – Leaf Blower + Spear
Sticky Bomb – Lawn Dart + Dynamite
Super BFG – BFG (Blast Frequency Gun) + Amp
Super Slicer – Lawnmower + Servbot Mask
Tenderizers – MMA Gloves + Box of Nails
Tesla Ball – Bingo Ball Cage + Battery
Wingman – Queen + Nectar
Giant Stuffed Rabbit Motorcycle – Dirt Bike + Giant Stuffed Rabbit
Machine Gun Motorcycle – Dirt Bike + Light Machine Gun
Rocket Launcher Motorcycle – Dirt Bike+ Rocket Launcher
Slice-Cycle – Dirt Bike + Chainsaw
Wheelchair Motorcycle – Dirt Bike + Wheelchair