Here is the full list of all 27 Snail Bob 2: Tiny Troubles achievements.
Collect 363 stars
Bob is frozen 5 times
Complete Chapter 4 "Winter Story"
Help Santa in Level 4-25 while Bob is in Santa outfit
Collect the puzzle in Chapter 4 "Winter Story"
Complete Level 4-22 faster than 16 seconds
Break 200 Ice Cubes
Make 10 hockey shots
Bob was gobbled by frog, crocodile, crab, bush lizard, spider and worm
Collect 273 stars
Dress Bob in the Elvis Outfit and come upon the concert in Level 1-26
Make away with 30 Ghosts
Dress Bob in the Football Ball Outfit and help the Frog in Level 3-20
Dress Bob in the Devil Outfit and meet Dracula in Level 2-11
Complete Chapter 3 "Island Story"
Collect the puzzle in Chapter 3 "Island Story"
Dress Bob in the Pirate Outfit and help the Pirate in Level 3-7
Hit Bob from the Cannon
Bob was burned, drowned, caught into a trap, fell into a pit and got in quicksand
Dress Bob in the Cardboard Outfit and hide Bob in the box
Complete Chapter 2 "Fantasy Story"
Collect 150 stars
Collect the puzzle in Chapter 2 "Fantasy Story"
Dress Bob in The Batman Outfit and help Robin Hood to escape in Level 1-11
Complete Chapter 1 "Forest Story"
Collect the puzzle in Chapter 1 "Forest Story"
Complete chapter "Meet Bob"