Just finished this and I enjoyed it, though I admit to looking at the walkthrough twice
(I couldn't work out where to use the rope or the needle)
Anyway, what it lacked in graphic shine it made up for in charm. Having three playable characters, each with their own abilities was a good feature (though some text to tell you what those abilities were would have been useful). The characters had a lot of... character, and the music was good. It reminded me of finding an adventure game by chance on one of those CDs with hundreds of shareware games on, and that's not a bad thing.
I hardly come across any bugs. I saw the previously mentioned "Hotspot5" label for the tap and noticed that Dog can walk around the title screen. Also the title itself has a mouse-over label of "oAlpha". Nothing major.
Good work!