Are you referring to a Color Bomb? When matching a Color Bomb with a Swedish Fish, all Candies of the same colour will be turned into fishes and eat a candy each. Depending on how many candies of that colour you have on the game board decides how powerful the match will be.
Some levels are quicker to play while others take a longer time. You can continue playing after your toilet visit. Remember to to both wash your hands and the phone after playing while having a 💩.
Hi @Priyacandy ! A tutorial feature is under construction so that a small tutorial pop up will come to all new features, but also for all new playerrs and if you haven't played for a long time and return the tutorials will reactivate to refresh your mind.