Use up to go up, down to go down, left to go left, and right to go right. Your goal is to go as long as you can without going outside the tunnel, which has random twists and turns, which are taken into account when you move. You gain points the farther you go. Yes, this is an infinite game and yes, it is (theoretically) possible to go forever. Good luck, and have fun! Please report bugs in the comments. My highscore is 16240. Can you beat me?
I made this almost entirely by myself (except the music and cloud high score engine - see below) with no hacked blocks, etc. Lots of credit to @relrel for the cloud high score engine! You can find that here: https://scratch.mit.edu/projects/10096959/ Note: I plan on updating this project some day and adding more than just a table for the highscores (highscore menu)