All instructions told in game... I think... This was before I got good at Scratch. Now my account is @Blackswift. This was made over a year ago, so don't judge my current profile on this.
OMG LOOK HOW MUCH I IMPROVED SINCE LAST YEAR! ^U^ Made in Scratch 1.4 I did not test this to make sure it was possible. Just sayin'. Don't judge me.