The presence of six colours makes it hard to create special candies. However, it is less critical due to the need to use special candies to clear the lower halves of the cake bombs.
The ingredients are worth 20,000 points (2 ingredients × 10,000 points per ingredient = 20,000 points). Hence, an additional 35,000 points for two stars and an additional 55,000 points for three stars have to be earned through matching of candies.
The player is required to earn an additional 700 points per move (35,000 points / 50 moves = 700 points per move) for two stars and an additional 1,100 points per move (55,000 points / 50 moves = 1,100 points per move) for three stars.
The lower halves of the cake bomb can only be cleared by using special candies because they are not connected to any candies. Their creation gives plenty of points.
Clearing the cake bomb instantly drops the ingredients. However, it removes all candies including colour bombs.
Once the first cake is cleared, it is much easier to clear the other cake bombs.