Use the arrow keys to move. Don't touch the left side or the bottom of the screen! Also avoid anything that looks vaguely dangerous (Like the spikes or worm-bullets) Note that the High Score system is NOT Cloud Data. It's your personal score until you press the Stop button. Post high scores in the comments! Notes on scores: Scoring is done by distance. >50 worm bullets appear, >100 spikes get thick.
Finally. After over a month of work, here it is at last. Utilizes a heavily modified version of mikeono102's platformer engine. The Music can't be uploaded due to bugs in Scratch itself, but it's very very good. I had it custom-made by a good associate of mine, only to find it can't be shared with all of you! Sad. More features might be coming, or they might not.