So I see a lot of Scratch platformers, but something I don't see very much is short-hops. You know, where if you hold down the button for a long time, you jump higher, and if you hold down the button for a short time, you jump lower. This project demonstrates this concept. Each circle is controlled using different controls. 'See inside' to find out what they are. Detailed code is available by clicking 'See inside.' It can't quite work as an engine, but it's enough to be a tutorial. As you can see, it is fully commented. Some parts of it are hacks to work with the rest of the code, but if you think you can do better, remix it. If you do remix it with a good contribution, tell me, you might get your remix mentioned in the Notes and Credits section.
Music: Final Exploration by @PaulRHJT. His songs are free to use by Scratchers All of this was written by me, with a little inspiration from Super Smash Bros.