No missable achievements (plus 56 unknown)
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Find two missing wooly socks
Complete Underground level 1
Find a hidden cake to unlock a special bonus mode
Complete any level with a three star rating
Complete Underground level 5
Complete Graze School training
Complete Further Ed-ewe-cation training
Complete Ewe-niversity training
Unlock a bonus level by finding a hidden joypad
Unlock the London episode by finding 12 socks
Complete London level 1
Unlock the Space episode by finding 24 cosy socks
Complete London level 5
Complete five levels with three star ratings
Complete Underground level 10
Smash 5 speed cameras in a row in London level 3
Complete Space level 1
Complete Space level 5
Complete Underground level 15
Find fifty socks, enough for any sheep
Complete any one bonus level
Complete London level 10
Complete Space level 10
Complete London level 15
Find seventy five socks, a lifetime's supply
Complete Space level 15
Complete all episodes
Find a giant cake to unlock developer commentary
Complete London level 5 with all chimneys intact
Complete any five bonus levels
Surf the camper van home in London level 15
Complete Underground level 6 with TNT to spare
Find every wooly sock in the game
Beat the developers' time on any one level
Get a photo of every sheep in London level 3
Complete London level 1 with the luggage on board
Find every hidden cake to unlock all bonus modes
Find every joypad to unlock all bonus levels
Get all three sheep flying together using the chimney
Complete thirty levels with three star ratings
Solve Space level 4 with only two teleport swaps
Don't touch the football in Space level 6
Complete any ten bonus levels
Complete Underground level 4 without using any TNT
Collect everything possible from every level!
Use just 2 'chutes to survive the mineshaft fall
Toast Shaun on a rocket in the last space level
Complete all bonus levels
Cross Big Ben's clockface without moving the hands
Change sheep selection just once in Space level 14
Complete all story levels with three star ratings
Achieve every other achievement
Complete Farm level 1
Complete Farm level 5
Complete Farm level 10
Complete Farm level 15