Ball Drop One, produced by Finnish developer Ville Helin, is an interesting blend of pachinko and pinball. Drop your ball into the playing field, trying to rack up as many points as possible. If your ball hits a skull ball or stops moving, it explodes and the round ends. Simple enough, right?
Well, no, not really, because this game has a lot going on. The objective is to score points, and scoring points unlocks additional levels for you to play. Also, your high score for each level is saved for you.
You can score points off of a multitude of different balls, ranging from exploding blues to shrinking yellows, give your ball an extra kick by correctly predicting which ball it will hit next, slow the game down temporarily, and give all balls a boost towards your mouse (at a cost, of course). Meanwhile, collect the "S" balls for a temporary slowdown, hit frozen black balls for extra balls, and collect multipliers to double or triple your score!
If this sounds like a lot, it's because it is. Ball Drop One, while fun, cannot find a place to settle down. The core concept is more than adequate for a good time, but the game feels a bit insecure, and tries to compensate by adding bells and whistles. The wide variety of gameplay aspects seem unnecessary; while you might find occasion to spend the 25 points on slow motion, you probably won't find cause to burn 100 on the thrusters. The only bit of gameplay you'll use with any frequency beyond dropping the ball in the first place is clicking other balls in hopes that your ball will strike them next, but the imprecise and luck-based nature of this task will discourage you quickly.
But the game is still a good diversion for a lunch break (and a level editor provides for something to do after lunch, if you are so inclined). Its set-and-go nature lends itself to a pick-up-and-play style, and it doesn't hurt that human nature lends itself to watching things bounce around a lot and going "ooh, did it make it—oh, it almost—OH, it made it, YEAH!"
That may or may not be a direct quote from my play through. Find out for yourself.