Under rating threshold (hideshow)
a single light bulb can power itself. Light it up using something, put a solar panel near it, on the same wire, and remove the original power.
The light bulb will not turn off because it is being given power by the solar panel, which is charged solely by the light it is powering.
This is what is known as perpetual motion.
Under rating threshold (hideshow)
Something i find sort of annoying: If you destroy the main power, the only way to get it back and be able to stop and edit (that i know about), is by restarting the level.
Under rating threshold (hideshow)
If you're having trouble on a level, rather than cheating and being told the answer without having to think, try working backwards from end to start and figuring out what needs to happen to get the effect you want.
Under rating threshold (hideshow)
the pushbot in lvl 26 apparently kills the hamster since after being pushed, it does nothing, making the level unpassable....