Hey, just wanted to share my progress on my current 4k project, and ask for opinions and critique. It's getting closer to completion, but it's not done and I'm open to any suggestions (and I hope you have a few!) :>

So, behold Bullets4k.

Now, as for the gameplay and controls:

• Arrow keys control your character - the bullets will follow you
• By holding control you can use "Power", attracting all the bullets
• Power can be obtained more quickly by placing your character in the green circle
• Reach the red circle with at least 50 of the bullets to win

The game currently holds 8 levels, but I should be able to fit in one or two more.

Note that the bullets have the same gravity at all distances below 100px, but further away it's based on the distance to the power of two, making you lose them if you don't stay close. Power will still attract these bullets as usual.

It's currently some 40 bytes below the limit, but I should be able to pack that somewhat harder. Please note that it _is_ optimized for size, not for performance, and is therefore slightly slow. With any luck I'll manage to fix that with a hint I got from oNyx, but I haven't been able to make it work so far.

Again, comments & critique appreciated!

EDIT: A few fixes to the text.
EDIT2: A working off-line version recompressed by moogie's 4KJO tool is down to 3700B, leaving room for some 5-6 more maps at the very least. This space could also be used for introducing textures (~130B) or a combination of both. I could even allow for paramenter input so that one can play custom maps built in my editor, but that'd require downloading the jar instead of running via webstart. What do you think? Maps? Textures? Other ideas?
EDIT3: 3 new maps (from 5 to , and harder compression. 3931 bytes at the moment.

I suppose. I'll think about adding all the scores together and displaying them when cycling back to level 1 or something such. A more sophisticated highscore would probably take up more space than I'd like to use, especially since it's more about clearing the levels than getting good scores.

Really nice game, good job.  That third level was pretty tough, then I got to four and quit.  I think there might be a shmup concept in there; heard your bullets to kill the baddies.  A no button shmup.  Cool game. 

So far the best gameplay i have seen in this contest.

Hope you will put more levels 

I'm using the lastest Java release on OSX and I'm getting literally 1 frame per 45 seconds.  I can't move the character in any way.  I just see a new frame every now and then pop up to show me a different shape of the white blob thing.  I don't know what's going on.

What about making it configurable? 
Just kidding.