Very nice game! It was only at board 3 where I noticed the dogs were what was taking the cans on earlier levels. The animations were so fast on boards 1 & 2 that I didn't know what was wiping across the screens. I could see the sight-line squares on the ground, but until board 3 didn't know what they meant. I think the dogs blend into the background a lot and are hard to see.
The audio was all well put together to give the game atmosphere. I think the color scheme was a little too mono, but that is a question of style. The puzzles were well thought out...and you even need to use some of those cans.
Nice submissions.