No missable achievements (plus 23 unknown)
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Played as another character.
Killed 100 chompys
Escaped The Grinder
Made it to the end of game party
Spent some turnips.
Killed more chompys than your friend in a game.
Got killed by a mine when not wearing the goggles in Helpful Chums
Complete all the challenges
Made it through the discotheque.
Killed 500 chompys
Killed 3 chompys at once with potato bombs
Made it through The Grind without getting the weapons.
Carried the pig 1000 metres
Killed all the soldier bots in Cross Fire
Found the funny face mask.
Unlocked Franky in Attack Of The Vegtabots
Made it through Bomb Hats without collecting all the clocks.
Escaped The Extreme Grinder
Didn't let the Pieosaurus die.
Found the final piggy.
Did all the challenges in 1 run
Made it through 'Pig Weapon' with one set of gloves.
Got to the end of the game with no deaths.