Fun with quirrels

You are going to help a squirrel jump from platform to platform, without falling into the pits between some of them. You have a button with which you jump two spaces at once, and one with which you jump only once. You have to figure out how to jump properly, getting to the end of each level before the time goes out, not fall into the pits and lose your lives, and also collect items along the way, and increase your score.