A tailor-made menhir
Recover the Crystal Menhir

The grass is greener on the Gauls’ side!
Finish Chapter 1 - Gaul

Break the ice
Finish Chapter 2 - Thule

A spare Tyre
Finish Chapter 3 - Tyre

A discreet odyssey
Finish Chapter 4 - Crete

It wasn’t built in a day
Finish Chapter 5 - Rome

The heroes’ return
Finish Chapter 6 - Save the village

Menhir Delivery Man
Finish the game in “Easy” mode or a higher difficulty setting

Gaulish Warrior
Finish the game in “Normal” mode or a higher difficulty setting

Gaulish Hero
Finish the game in “Difficult” mode

Things are starting to get serious
Do a 50-hit combo

Untouchable
Do a 100-hit combo

Combat Master
Do a 200-hit combo

It’s gonna be rough...
Buy a character upgrade

By Toutatis!
Buy all the character upgrades

Miser
Possess 5,000 helmets (you need to have 5,000 helmets at one time, this one is NOT cumulative during the game)

A fine collection
Collect 10,000 helmets (accumulate 10,000 helmets during the game, you don't need to have them all at one time)

These Romans are crazy!
Defeat 500 Romans

Incorrigible Gaul
Defeat 1,500 Romans

Super Gaul
Defeat 500 Romans under the effect of a magic potion

Ice dispenser
Freeze 100 Romans
Once you have the Ice Crystal Menhir, use LB + A to freeze Romans. They must look like giant ice cubes, meaning your attack was fully charged.

It’s hot, it burns!
Warm up 100 Romans
Once you have the Fire Crystal Menhir, use LB + A to light Romans on fire.

Sandman
Stun 250 Romans

The art of subtlety
Stun 250 enemies with Romans falling back to the ground
Throw Romans up in the air using LB + Y, they should be stunned when falling back.

Swing
Send 6 Romans flying with a single uppercut
One good spot for this is the Esohandsum Camp (Tyre), use Asterix and a magic potion, try to gather as many as Romans as possible around you, and hold LB + Y.

Seeing stars
Throw 100 Romans
Simply hold LB + A.

Pro Bowler
Throw a Roman and hit 10 enemies
A good spot for this one is during Chapter 4 - Newvolum Camp. There is a bridge with 2 rows of perfectly-aligned Romans.

Get a load of this barrel
Defeat 10 Romans with a barrel of powder
Should pop naturally during Chapter 2.

Don’t miss!
Make a Roman hit a target
You can find targets in Roman camps. Hide behind one while a Roman archer tries to hit you.
If his arrow hits the target you'll get the achievement.

Handball pro
Throw one Roman back and forth 5 times with another player
This trophy has to be done in co-op. You need at least a second controller. Another player is not required, you can do this trophy by yourself.

Now find an open area and kill all romans except one (preferably a simple lance roman as they are not very aggressive). Now line up Asterix and Obelix so they are facing each other. Make sure the roman is attacking one of the two. Now hold down LB with BOTH controllers and begin mashing A while holding LB with both characters. If done correctly the character who is attacked will pick up the roman and throw it to the other character, who will pick up the roman and throw him back to the first character.

The roman has to fly back AND forth 5 times, so he has to fly a total of 10 times to unlock the trophy. The roman must not touch the ground while doing this, or the counter will reset and you have to start again.

Make sure to have your energy bar charged as this move will cost energy and if you run out of energy you will no longer be able to continue performing the move.

Source [www.truetrophies.com]

Chapter 1

Petibonum

7000 points needed

Chapter 1

Aquarium

7000 points needed

Chapter 2

Reykjavum

7500 points needed

Chapter 3

Esohandsum

8000 points needed

Chapter 3

Adenufofum

8000 points needed

Chapter 4

Newvolum

8000 points needed

Gaulish excellence
Complete all the camps with a gold medal