This is a very good game, it's very fun and addictive. Though I have to agree with @Flamewolf393, the ghosts appear right where you are, with out a pattern or chance...
Other than that, it's very well done.
too hard. the balls move stupidly fast with no pattern, the ghosts can appear right on you and knock you into other ghosts.
Tut, tut. If this is annoying for single-player, imagine what it would be in co-op.
This is the area where I gash the most points. The ghosts appear in places where you are relatively safe, half the time appearing SPLIT SECONDS after you have gone to safety. This takes out more health than you are able to recover with the power-ups that come about.
Kinda fun, I guess, but doesn't detract from the annoying gameplay -- if anything, it does aggravate it. I've had to keep it muted.
Fair, I guess. Not the most stylised, and I can't find much that stands out.
If this was done in the time span of 48 hours (say, for a Game Jam), I'd have been more forgiving about it -- but considering this has been developed and released at a relatively free period, I can't support this.