Construct 2 Platformer
Move and jump with the arrow keys. If you fall off the stage or think this is crap, just click the little x at the top of your browser tab. If you fell off before you did anything, I guess you can reload the webpage to "play" again.
Just did the Construct 2 tutorial and wanted to test the free HTML embed build so here it is. I'm also taking my lecturer's advice to "publish" every little trashy thing I do regarding game dev. The whole game is in the preview GIF; don't say I didn't warn you. Yep, did the awesome animated and tiled sprites myself.