Forum:I only have until Xmas eve

I'm trying to up-grade my cousins 3 decks and i'm having some trouble. He wants them back in 4 days and i don't know what else i can do to make them better. He has a machina deck, gemini deck, and a synchro deck. Any help is appreciated.

Machina

[[Monsters x26

Machina Force x1

The Big Saturn x1

Machina Fortress x1

Cyber-Tech Alligator x1

Cyber Dragon x1

Mechanicalchaser x1

Machina Sniper x1

Machina Gearframe x1

Machina Soldier x1

Drillago x1

Blast Sphere x1

Green Gadget x1

Red Gadget x1

Machina Defender x1

Yellow Gadget x2

Spell Reactor RE x2

Commander Covington x1

Scrap Recycler x1

Trap Reactor Y FI x1

Heavy Mech Support Platform x2

Machina Peacekeeper x1

Boot-Up Soldier-Dread Dynamo x1

Cyber Valley x1

Spells x9

Solidarity x2

Machina Armored Unit x1

Shrink x1

Limiter Removal x1

Frontline Base x1

Swords of Revealing Light x1

Card Trader x1

Hand Destruction x1

Traps x5

Dimensional Prison x1

Metalmorph x1

Rare Metalmorph x1

Roll Out! x2

Gemini

Monsters x22

Phoenix Gearfried x2

Gilford the Lightning x1

Evocator Chevalier x1

Dark Blade x1

Dark Valkyria x1

Max Warrior x1

Assault Mercenary x2

Future Samurai x2

Field-Commander Rahz x1

Maha Vailo x2

Blazewing Butterfly x2

Goggle Golem x2

Gemini Summoner x1

Twin-Shield Defender x2

Featherizer x1

Gemini Soldier x1

Spells x10

Monster Reborn x1

Burden of the Mighty x1

Supervise x1

Mage Power x2

Axe of Despair x1

Lightning Blade x1

Fusion Sword Murasame Blade x1

Unleash Your Power! x1

Card Destruction x1

Traps x8

Dark Bribe x1

Call of the Haunted x1

Birthright x3

Gemini Booster x1

Gemini Trap Hole x1

Kunai with Chain x1

Synchro

Monsters x26

Cyber Ogre x3

Dark Blade x1

Axe Raider x1

Tune Warrior x1

Magna Drago x1

Mataza the Zapper x1

Junk Synchron x1

Dark Tinker x1

Speed Warrior x2

Bicorn Re'em x1

Quillbolt Hedgehog x2

Quickdraw Synchron x1

Frequency Magician x1

Swarm of Scarabs x1

Sonic Chick x2

Renge, Gatekeeper of Dark World x1

Charcoal Inpachi x1

Needle Soldier x1

Magic Hole Golem x1

Copycat x1

Spells x8

Synchro Blast Wave x1

Lightning Vortex x2

Hammer Shot x1

Tribute to the Doomed x1

Synchro Boost x1

Mind Control x1

Smashing Ground x1

Traps x7

Scrap-Iron Scarecrow x1

Miniaturize x1

Divine Wrath x1

Sakuretsu Armor x1

Byroad Sacrifice x3

Extra Deck x4

Junk Warrior x1

Gaia Knight, the Force of Earth x1

Colossal Fighter x1

Road Warrior x1

So these are his decks, please help, any bit is much appreciated. I don't have a name here other that some numbers, so i'll sign as S.O.R.D.G.