Laser Beam

The Laser Beam is a major hazard in Bob The Robber series, This hazard can also activate the alarm when is touched. You have to disable the panels to disable the lasers. In Bob the Robber 1 and 2 there is no time limit, but in Bob the Robber 3 and 4, there is.

Trivia
In Bob the Robber 1 Level 1, the Laser Beam is the only way to activate an alarm.