Welp. This game is broken since Scratch 3.0 Goodbye old friend
I think you need to use the flash player version of scratch for this to work. You may also need to hit the green flag once its loaded to get the character to run around the menu, but that isn't too important :P Game made for a competition at school. Some features are from VVVVVV, style is similar but custom too. Space, A and D to play. There are a few bugs, but none affect game play too harshly, there wasn't enough time to fix them.