These games that I have found out about over my couple of lunch breaks are very interesting and highly addictive that also require allot of thinking as well as timing.
Hapland 1 One of the most creative and bizarre puzzle games I've ever seen, you have to rescue a stick figure from a cell and get him into a portal. To do that you have to click on objects and discover what they do as well in what order you have to click them in. I finished the little bugger without any hints or tips except the first one that gets you started. Took me about 2 or more hours to get the stick figure into his portal and back home safely.

Hapland 2
The continuation of HAPLAND 1 same objective buy with more stick figures and objects as well as more timing is required, and allot harder then I first one. I beat it but took me another one hour or more.

Hapland 3
The last and final from the Hapland series I think this is the ultimate test of your puzzle solving abilities. This one has way more object with allot more of timing and a happy surprise ending which took me 4 hours or so to find out what happened, at the end.

For help hints/tips and walkthroughs please go to this site for all your Hapland adventures.
took me aprox. hour and twenty minets to finish the first one :D