When I animate I always have a finished sprite, first of all. You're going to spend hours filling in all that color over and over later, when you don't need to.

Generally I then pick out the key parts like hands, feet and the head, then erase everything (not erasing the initial frame, of course, that would be dumb) and move all this small bits without changing their appearance so that I have the motion done, then I fill everything in inbetween... it saves me the trouble of finishing frame 2 and having frame 3 not fit.

But then again, I don't have much idea how I animate, it usually just turns out well... I never imagined I'd be any good at animating in particular, people have just said I am. 

Just don't animate lineart like Adam said, and make some sort of template so you don't have to scrap lots of work halfway.

setz, I believe that doesn't happen if you download the game again  :\

Gustav is a retard, sits in a wheelchair and I'm forced to feed him every day. He only eats stuff I have to get at the pharmacy in a neighboring city.

Thanks everyone. I fixed quite a serious bug, though.

Anyone having invisibility problems on level 4 should be happy now... can't believe I didn't notice it, it's caused if you die while flying once or more.

You'll have to redownload, of course.

Hey, I just finished a game of mine, for all you 2D-lovers. It might not be 100% perfect in terms of polish, but I'm happy!

It's an action game with lengthy levels and worthless story, but that's sort of the point.

More info here:
http://www.konjak.org/noitu.htm