Smart Pen is one of those puzzle games that is essentially a browser-based version of iOS game Blek by another developer, which definitely puts it in "clone" category. The controls couldn't be easier. Simply draw a line or shape and watch the pattern repeat in the air. Your lines will bounce off the sides and keep repeating but the upper and lower borders are off limits, and then there are the black holes you must avoid. The goal is to send your magic marker through each colored circle on the screen, requiring no small amount of imagination and artistic flair. The pen is smart, sure enough, but it can take some time to reprogram your brain enough to understand just how your lines will behave once you set them free in the vacuum. This is how mouse-only browser gaming is supposed to feel, requiring forethought, a sure hand, and a boatload of patience when things get tricky.
A track pad is not the best option to play Smart Pen. Every tiny flaw in your design throw the pattern further and further off the mark as it repeats its way across the screen. This is one mouse-only game that actually requires a mouse, or even better, a stylus and touch screen. You also can't just play connect the dots. Your line won't count if you accidentally connect it directly to a colored circle, it has to make it there after you let it go. This can be frustrating in the levels that require precise maneuvering. But every good puzzle game has just a smidgen of infuriating, doesn't it? It adds spice, like a drop of hot sauce. That's really what we have here, a soothing, minimalist experience with a splash of infuriating difficulty that keeps you wanting to beat the next level. It's unfortunate that Smart Pen is so clearly taking more than a page out of Blek's book without acknowledging it, so if you enjoy Smart Pen, make sure you play Blek as well. As it stands, Smart Pen is still a fun example of a preexisting concept brought to your browser that might turn you on to another game when you're done with it, too.