I liked it

The puzzles were challenging enough that solving them brought a feeling of accomplishment.

It's a good game even without all the little details that would have given it a smooth, professional feeling.

Those little details that could use some improvement are as follows:
1. A little animation, sound effect, or something following the solution of a level. I'd like to be able to just sit there and admire the completed grid for a little while.
2. Background music. Just so players could get into the atmosphere of the game.
3. Sound effects.
4. Tidier graphics. It would be so much nicer, as a game that requires a bit of time spent to solve, if the graphics were easy on the eyes.

That's about all I can think of. Thanks for a good game!

average

thanks for slightly changing concept, pretty dull though

I'm impressed

Ok, I got to admit this is a nice and simple game that doesn't try to make you lose by forcing you to think faster than you are able to, you have all the time in the world to make your choices and find a solution. Went off to dinner, had a two or three hour conversation with the family and came back my gave was still waiting on me to finish. I love that. Also, it is so puzzling enough that even though the levels don't change at all the solutions are not easy enough to remember right off the bat so coming back and playing again means you still get a good challenge again and again.

Please add some simple yet soothing music to this, make a pleasant background for us to simply take our time in, something inviting to linger and think about our solutions. That is pretty much all that it is missing, more levels as well as something like this I find interesting on so many levels.

simple but fun

This game doesn't try to be anything but what it is. Simple and addictive. Put on some music in the background and try grind through the levels.

I love logical games and this was perfect. The art scheme, while minimal is suitable. I only had time to advance to level nine, but I can see a lot of potential tweaks to make the game a slightly more interesting. Does the entire game consist of just pipes and bulbs or do you throw a curve ball later on?

Some music would be appreciated, mostly upon completion of a level. That is minor.

Basically, I had fun. 7/10 for me.