I have uploaded my first 4 levels gameplay to SkyDrive. I'm not too happy with how I handled the mouse role but everything can be modified.

@Txesmi
I checked your sketch out and I love the way you managed the mouse part(with fissure behind the bed and illusion of prisoners) The boxes part is also o.k. but I must admit I'm not so crease about the boy being so little that he can go between the crosspieces of cell doors It seems a bit off.

Maybe we can make a joint sketch taking your first level best parts and my first level best parts.