40 unique tests will challenge your reactions, creativity and short term memory. Only the strongest will beat them. The title and many other aspects of this game are misleading. A lot of hard work and careful planning went into this. If you like it, play the first Timewaster also.
When you reach a checkpoint, make sure you write down the password. You may come back and play from there later.
Please don't spoil it for everybody by giving away passwords or ways to beat certain levels in your comments. There is a walkthrough for the impatient ones. But try figuring it out on your own, it's more fun.