Each player gains 3 timers (Ì). In player order, players take turns choosing an obstacle or device and placing it into the play area until all obstacles and devices have been placed.

• Obstacles and devices must be placed beyond range 1 of each other and beyond range 2 of the play area. After the Electro-Proton Bomb is placed, place 2 fuse markers on it.

During the End Phase, in player order, each player may spend 1 timer (Ì) to add or remove 1 fuse marker from the Electro-Proton Bomb.