whoa i agree with the other comment--it's actually pretty cool seeing how you're combining diff mechanics in this puzzle game and it definitely helped me to see the gif in action. i really like the framing of this as a programming language--it's kind of campy and really fun and i think presents a lot of interesting potential.
as a quick note i wanted to mention: the bright green bgs/sprites are a little harsh to look at for more than a few minutes--maybe even inverting this w/ black bg/green text might be easier on the eyes? (and even look pretty cool: like code or something) as a prototype, visuals aren't the most important, but i think it'd be worth experimenting with different colors.