This was very good, occupied me for quite a while. Its like a typical pipe connection game but with a colour mixing twist. The visuals were really nice as well, though could definitely be polished more such as fading out instead of turning straight to black instantly, but that's me being quite nit-picky. Making puzzle games like is rather time consuming but this had quite a lot of levels so I enjoyed the whole thing over some time.
PS; The filter mechanic broke me...