The wormhole is a common game element. It teleports you to another position anywhere on the screen. That is the first element to make the solutions less obvious for the player. It also gives the game a more colourful look. Additionally, we can use several wormholes in different colours to irritate the user.
But it was a long way until we finally agreed on a design for the wormholes. Here are some examples of the things we tried out. We hope you like the final decision.