This Trophy doesn't count the first time you play this mini game. After you complete the
Toy Box world. Head back and fast travel to
Galaxy Toys Main Floor: 3F and head over to the game store. Head all the way to the back of the room where the TV screen and Console is and hit X on the game controller to start the mini game.
There are two ways of unlocking this trophy. One I found more easier then the other.
The first way is to complete all the
bonuses (Harder method in my opinion)
Single Ride -Complete the match with a single Gigas, pretty straight forward. this is easily done with the first Gigas you start with. This bonus will grant you
2,000,000 pts.All Traps -Defeat an enemy with every trap type. There are 3 different types of traps in the area. Heat blast, Crystal Smash, and Zap Trap. The first one you can do as soon as you jump in the Gigas and run down the ramp a bit is the Zap Trap. Shoot the Glass the enemies are standing on and they will drop, causing them to fall on the trap below. Heat blast is the reactors cores around the map. Shoot the reactor while the enemies are near and they will blow up. To get the Crystal Smash you have to shoot at the Cranes on the rail above. This will open up and drop crystals on the enemies below. This bonus grants you
1,000,000 Pts.Ultimate Warrior -Defeat the boss without taking damage. This is a very hard one to complete, but gives you a nice bonus if your able to do it. Everyone has different methods to completing this. I somehow managed to do this while on the ground near the zap trap and Heat Blast. I kept moving around and he was unable to hit me while he was also getting it by the traps. This bonus grants you
3,000,000 Pts.So I tried it the way above even with hitting the Ultimate Warrior Bonus and somehow I managed to hit a score of roughly 11,900,000 Pts which you can imagine is a bit frustrating. I found a easier way to completing this which is to just keep wreaking havoc on the enemies and keeping your kill multiplier chain at x26. This multiplier should and only disappear when the boss arrives. If you managed to lose it before hand you might have to start again. My end score by doing it this way was
12,583,225 pts.If you have any troubles here is my Video guide with the method above. Happy Hunting! :)