House Mouse is a simple, pointless game, but one that is irritatingly compulsive.
The basic idea is that there is a mouse under the floor of the house and you want to find it. Click on a tile and you're told how far away it is, so you try again. The mouse can moves, but only one tile at a time, if at all, so it may surprise you how difficult it can be to find the mouse. It just seems to escape.
Full Help facility.
Also available from i.compactfun.com if you cannot download from the Android Market. Versions for iPhone, iPod Touch, iPad, Nokia, Windows PCs and Macs also available from there.