Marble Muse achievements

Completed all proof of concept levels.

Completed all product levels.

Completed all prototype levels.

Found the hidden chamber

Received a platinum medal on all levels in challenge mode.

Found all the red stars in all levels.

Found the hidden marble in all levels.

Quitting in frustration is such sweet sorrow when you receive an achievement for it.

One-hundred percent the game. Check your progress in the credits.

Received a gold medal on all levels.