Hey y'all! Did you read the warning part in the main page of the game. In order to start the game you need to press BACKSPACE 4 times. It's an unintentional bug that I didn't have time to fix and also not appearing on my computer (as you can see on the walkthrough video I've made).
Just press backspace 4 times. I hope you can get at least to the fun part where you can dash, wall climb, wall jump, double jump. Sorry for the annoying bug at the very beginning of the game.