Arrow keys to choose
Z as X button
X as O button
M to insert memory card.
Notes and Credits
Best to run this with Turbowarp. Here's a link: https://turbowarp.org/724049756?interpolate
The glow effect lags on the scratch website. Turbowarp fixes that. I did make an anti-lag system which just makes the gradient blue and black instead of blue and transparent. You can probably tell.
TurboWarp is a Scratch mod that compiles projects to JavaScript to make them run really fast. Try it out by inputting a project ID or URL above or choosing a featured project below.