Snowflake Symbols are the game-wide collection players are tasked with completing in Goldilocks and the Fallen Star and its accompanying bonus game, The Golden Slumber. There are 32 symbols hidden throughout the main game, with one found in each and every location of the game. The remaining 8 are found in the bonus game. Finding all 40 symbols will earn the player an Achievement entitled "Snowflake Chaser".
Underneath the Map Button in the game's interface, there is a small snowflake button. Hovering over this button will tell you how many of the symbols you have found thus far. This button is gray whenever you're in a location where a snowflake can still be found. Once the symbol has been located, the button will turn gold. This mechanism can be used to help the player find any snowflake symbols they may have missed before completing the game from then on.
If the game and bonus game are completed without the player having found all of the snowflakes, the "Collectibles" option on the Bonus Content menu allows the player to return to any locations from the game in order to pick up the symbol they missed. Goldilocks and the Fallen Star is possibly the first game that allows this.