I love the whole neon look in this game, the graphics looks super polished. Lots of cool and unique mechanics too, like diving under the water and jumping. The maze also has a lot of unique level design so the game never really felt boring. I also like the death animation, it looks really cool.
I think the difficulty ramps up too quickly with the blue and red gates. The game is actually really chill and easy until that part, then I spent several minutes struggling to get the snake through the door because it was so big. The game also wasn't very clear about what happens to the previous color when you pick up a new one, so it took me a while to figure out that puzzle. I also think the water should have some color, because it's a little hard to tell what's water and what isn't.
Overall, great game with some cool mechanics. I managed to beat the whole thing.