Thanks for all the nice replies!
I've been meaning to finish up this game and so I think it should now be all set!
I fixed some bugs and even wrote some unit tests. Unit tests doesn't mean it is bug free
but at least it means that if I do find a bug I can fix it with some assurance that I didn't break anything.
I included and finished the level editor. It even allows you to test the level you are making.
I'll be starting another game shortly.
p.s. The maximum attachment size of 1024KB is really close to my attachment's size.