You you have fullscrenn on HTML you can't see all the game, also the jump was a little bit of confusing.
Viewing post in Looking Back jam comments
hmmm, I am unsure about the fullscreen thing. I had it work on mine fine and I have the aspect ratio set to 16 by 9 so it should work on any monitor with 720p. Ill have to look into that.
Jumping wise that is definitely something I need to work on. Thanks for letting me know and thank you for playing! Good luck with the jam.