I think I got to around 65 points before the red square began catching up to me and taking away my points.

It's definitly a fun little game, I love the simplicity of the code with regards to dependencies. If you look through the code, you can also find that the shift key acts as a brake, definitly not something that is very discoverable.

I wish there were more ways to control the green square, the arrows keys on my touch bar macbook pro are pretty bad and my hand began to cramp a little bit.

Managed to get over 120. Because the red terminator can't cross the edges, but you can, the key is to use the edges as much as possible and to avoid going through the center unless you are lined up to get the food.

I got up to about 100. Stick to the edges of the screen, and tap the arrow keys for finer grained movement.

Got to 230 by constantly going in circle

I used the console to set my score to 20000, and at that point the red block blinks and its movement behavior stops working correctly.

Nice