256k is actually quite a lot, if you take a conservative
approach from the beginning.

But still, if you have space left, there is alway place for
one nicer splash-image or soundeffect.

Fuzzeling around with different compressors, can also
give several kilobytes more.

Even if an entry is not the über-product, its nice
to show your ideas, and finishing an entry that other can try and play.