Eat Your Words! (Gold) – Eat the words NOBY NOBY BOY within the manual or in the staff credits.
– Press Select to bring up the in-game manual. Press Triangle to active Boy. Then proceed to eat (L2) the words Noby Noby Boy! Eat the words one letter at a time, in order, and try not to get any other letters besides NOBY NOBY BOY. If you mess up, press Select and then press it again to get back into the guide.
765 (Silver) – Report a length of exactly 765m to GIRL.
– Hold right on the Left stick and press Start to bring up your real-time stats page with your length. Keep stretching and shrinking to build up your unreported length. Watch your length very carefully and go very slow once you get around 750m. Also, be careful if you are on a map with any kind of moving objects, i.e. cars, because if you collide with them you may accidentally stretch too much and have to start over. Once the stats page shows you’re 765m in length, get out of that menu. Now hold up on the Left stick and press Start to bring up the Girl menu. Report your length and the trophy is yours.
The Prince (Silver) – Take the Prince for a ride.
– The Prince can be found on Earth in levels with falling Katamari. He can also be found on the Moon in a level filled with Princes and a NOBY NOBY BOY statue. I would suggest trying the Moon, as you have a better chance of finding him there. Once you pick your world, just keep changing levels in your house until you see him. He is very small, so keep an eye out for him. When you see him come out of your house, move next to him. Once he hops on you the trophy is yours.
Unproportional (Silver) – Make BOY’s body grow thicker while keeping his head small.
– You can get this trophy at the same time as 20 and 100. What you need to do is stretch out as far as you can, then proceed to eat everything in Boy’s path (Doesn’t have to be inhabitants unless going for 20). Once your body is completely filled to Boy’s head, press and hold L3. This will cause Boy to shrink from head to rear completely. Once you are done shrinking, Boy will be a little fatter and start farting objects out. Before he lets it all out, stretch back out and repeat the above process about7-8 times. This silver trophy is now yours.
Combined Character (Silver) – Create a combined character by eating an animal and a human or a fruit and a human.
– Stretch Boy out with nothing in Boy’s stomach. What you need to do now is eat a human and an animal or a human and a fruit. Make sure you don’t get anything else in your stomach. Now press and hold R2 to fart them out of Boy’s rear. You should only fart one combined character out, and the trophy should pop up.
10 (Bronze) – Take 10 inhabitants for a ride.
– You need to get 10 inhabitants on your back at one time. My only suggestion is to find a level with a lot of very small people, stretch out really far, and go really slow as to not knock people off. Try to avoid hitting objects as well. The 10th person will make the trophy pop up.
20 (Bronze) – Eat 20 inhabitants.
– You can get this trophy at the same time as the ‘100’ & ‘Unproportional’ trophies. You have to stretch yourself out enough so that you can fit 20 inhabitants inside you at the same time. Try to eat small inhabitants and keep track of how many you have eaten by the humps in BOY’s stomach.
100 (Bronze) – Stretch BOY to a length of 100m.
– You can get this trophy at the same time as 20 and Unproportional. Once you start the game just keep stretching Boy until the trophy pops up. Alternatively, you can hold right on the Left stick and press Start to bring up your real-time stats page. This way you can actually see how long Boy is in meters and track your length accordingly.
Bye-Bye BOY (Bronze) – Meet up with Bye-Bye BOY.
– You can get this trophy at the same time as The BOY House. When inside Boy’s house go to Quit Game. Fairy will come out followed by BOY coming out of the chimney. Congratulations! Now you have to go back to XMB and restart the game if you want to keep playing.
The BOY House (Bronze) – Rotate the roof of the BOY House.
– You can get this trophy at the same time as Bye-Bye BOY. Go into BOY’s house and press down on the Right stick to rotate the roof.
The Space Squirrel (Bronze) – Find the Space Squirrel.
– Hold up on the Left stick and press Start to take you to the Girl menu. Here, you need to upload your current length to Girl. Once you upload you will see the little squirrel pop up from the bottom right corner. Shortly after you see him, the trophy will be yours.
BOY Quiz Expert (Bronze) – Answer all questions correctly in the BOY Quiz.
– This is the very first thing you do in the game. I do not believe you can get a question wrong. Fairy will ask you 4 questions about the controls. Pretty much just you tutorial for the game.