I and I think most people would strongly prefer if W would be jump, rather than Spacebar, when using WASD control.
Scrolling the screen slightly upwards isn't that important. Jumping definitely is important.
Because of the awkward control scheme the game feels challenging only because bad controls themselves are fighting with the player, which is not where you want to put your game difficulty.
If it wasn't for that, this would be a rather solid, though incredibly short, submission.