Here is the full list of all 49 Madagascar: Escape 2 Africa achievements worth 1,000 gamerscore.
Complete In Madagascar
Complete Prepare to Launch
Complete Welcome to Africa
Complete The Watering Hole
Complete Penguin Caper
Complete Convoy Chase
Complete Rites of Passage
Complete Mort's Adventure
Complete Water Caves
Complete Wooing Gloria
Complete Volcano Rave
Complete Fix The Plane
Complete Dambusters
Finish Balloon Kicking with 100% accuracy on In Madgascar
Finish a Dive with 3 Perfect Boosts
Hit 3 bullseyes out of 6 targets using Mort's Slingshot in Prepare To Launch
Do not allow a single mole to escape in the Fireworks minigame on Prepare To Launch
Hit 10 Scorpions with one Durian shot on Welcome to Africa
Complete Melman's Boulder Roll on the first try without getting wet in Welcome to Africa
Cure 7 patients in a row without failing in Melman's Clinic
Take all the shortcuts during Marty's Race on The Watering Hole
Complete Soda Toss with fewer cans thrown than guards defeated in Penguin Caper
Scare off all 10 guards with 20 pieces of candy or less in Penguin Caper
Disable a truck from above in Convoy Chase
Take out 50 road signs in Convoy Chase
Complete Musical Chairs without losing a round
Hit 3 lions by roaring their own mangoes back at them in a game of Dodgeball
Land on Rocket Target Without Using Banana Balloons in Fix The Plane
Hit the Jackpot on Chimp Change in Fix The Plane
Snap all pictures without getting seen by Moto-Moto once in Wooing Gloria
Smash all the boulders in Wooing Gloria
Smash all the Boulders in the Water Caves
Bubble all the Crocs in the Water Caves
Complete the Pinball Game without getting eaten by the Croc on Mort's Adventure
Defeat all the lizards in Mort's Adventure
Take out 4 Balloons with one durian on Dambusters
Dodge 12 Balloon Missiles on Dambusters
Complete any song on Hard without missing a pattern on Volcano Rave
Complete any Rave Song on Hard without hitting ANY of the patterns
Collect all monkeys
Collect all coins
Score a Hole in One on Minigolf
Fall 75 feet
Complete all Africa Arcade games on Hard
Hole-In-One without hitting the ground on Bag Check minigolf hole
Beat Sun-Tzu difficulty AI opponent on Jungle Chess
Score 27 or less in a standard 9-hole Minigolf game
Win the Jungle Chess game with 1 character left
25 instances of watching a cutscene without skipping it