I made this little game, more of a demo really, by myself as part of a level design course. I used Phaser, a JS game library.
I used this project to teach myself to use Phaser. The initial idea was to create a platformer in which platforming is not primarily done through jumping.
My focus was on teaching the player the game's unique mechanics without the use of text or demonstration.
Move with the left and right arrow keys. The up arrow key will allow you to jump, but you shouldn't need it much.
You'll be able to learn the rest on your own.
You can play it here.