Jumpcat is the fourth entry in Kongregate's Buried Treasure week, and sadly, it's another mediocre dodger. You play the titular cat, and as the screen scrolls, a variety of obstacles comes at you, and you have to (surprise!) jump over them. The obstacles include rocks, trees, and a surprising number of low-altitude helicopters.
The game is not at all easy -- you have to hold down the jump key to charge up enough jump power to get over the higher obstacles, which often takes nearly all of the time you have. But you can't just hold down the jump button as soon as you land, either, because some obstacles are on both the top and bottom of the screen, so you have to jump through them. And, as if that weren't hard enough, fairly early in the game, another helicopter will start dropping bombs on you, which have a way of hitting you in places where you can't easily maneuver away from them.
The graphics and sounds are both very basic. The background music is kind of catchy, and I can imagine a lot of games it would be a good addition to, but this game is not one of them -- it seems completely inappropriate for a light game (bombs notwithstanding) like this. One nice feature of the game is that, at the end of the game, it tells you how many points you had at the end of each of your lives. This is kind of a neat way of showing your progress.
Overall, this is an exceedingly frustrating game; despite its short length, you'll still find the ease with which the game can kill you quite annoying. There's neither enough depth nor enough balance to make this a really entertaining game; it definitely ends up in the class of games which stopped being fun before I reached the final badge, which was very tricky to get and required a lot of luck (and some skill, admittedly). I'm not quite sure why this was selected for Buried Treasure Week, other than that it's got a cat -- it really doesn't have anything unique in it.