| Achievement | How to unlock
|
|---|
| Ascent | Finish all regular levels in this chapter.
|
| Better Fly Like Condor | Finish all regular levels in this chapter.
|
| Brainiac's Mansion | Finish all regular levels in this chapter.
|
| Clean Sweep | Finish all bonus levels.
|
| Don't Panic! | Discover the ultimate answer to life, universe and everything.
|
| Fall In | Finish all regular levels in this chapter.
|
| Just for Fun I | Finish all regular levels in this chapter.
|
| Just for Fun II | Finish all regular levels in this chapter.
|
| Loaded Runner | Finish all regular levels in this chapter.
|
| More of Hints | Finish all regular levels in this chapter.
|
| Night with the Tentacles | Finish all regular levels in this chapter.
|
| None Left Behind | Finish all levels in the game.
|
| The Control Room | Finish The Great Cleanup.
|
| The Great Cleanup I | Finish all regular levels in this chapter.
|
| The Great Cleanup II | Finish all regular levels in this chapter.
|
| The Great Cleanup III | Finish all regular levels in this chapter.
|
| The Great Exit | Escape from the professor's mansion.
|