@vicitrow the fish with bolt is set off when your friend collects their candy. It releases an active fish (a fish that swims off and hits something as opposed to sitting on the board for you to us) e.g. after you collect 12 cyan candy while playing with Yeti he throws a wrapped candy onto the board for you to use. Once it hits the board you will see a fish swim out of it and hit a square somewhere else

https://youtu.be/sz128c8ALG4