Roll the dice and move that number of spaces and follow the instructions on the space. You may choose to re-roll the dice a second if you want a better roll. You may also choose to re-roll a third time, but you are then required to accept the last roll and move. If you roll a lightning bolt at any time, you must go back on the path to the last lightning bolt passed and your turn is over. The first player to reach the 'lab slab' by exact count and be energized by rolling a lightning bolt becomes a 'Super Monster' and wins the game. - BoardGameGeek