The tutorial has text that tells you hopping in the game a straight upward hop. If you could jump forward while in the air it would break 90% of the level design puzzles.
Can you send me a screenshot of the shop being screwed up on your 16:10 monitor? On mine it looks fine and im trying to fix all UI to stretch and shrink correctly across different screen sizes but its annoying and hard.
Once I'm done with another guys demo review il reply back to you an update that has changes based on your feedback.