Space to save your current code, enter to upload it/use it again. To code, click on the blocks. The Scratch cat will do them. I probably forgot to mention, how to start the project, so just stop the real project or click the button on the upper of the screen. Enjoy!
I got inspiration from griffpatch, and i got the sprites from Learn The Blocks! or smth. UPD 1: Forever now works as Forever (it worked as a say () back when i uploaded the project