UPDATE 5:
Small update... Now that the main mechanics are done, I am mostly just set out to complete smaller but nesessary tasks such as auto-saving, a few more enemy types and a dialog box. (Of course all this without any of the spritework or sound design, because putting every task you don't enjoy to one day definetly doesn't get you demotivated or burnt out...) Well all that remains for the last 3 days are the music , a story and some levels. Should be fun :)