I pretty liked the introduction it is really satysfying !!
The art style is reaaalllyyy cool, with the background music it gives a cool atmosphere (sadly the backgound music does not loop corectly so it drop the atmosphere ambiance and feel strange)
Unfortunatly the controls were buggy impossible to move correctly my character in the direction I want, and mixing this with the movement sped i thought really fast, it was pretty hard to make move this ball xD
I liked the concept,i wasn unfortunatly able to pass the second phase with the ramp (the ball was always going too much in the air when my character wasnt able to slide properly
Also i really liked the tutorial text, may be they can be more readable beceaus i had some troubles to see them (maybe next time put them on a proper panel to make it readable correctly )but integrated like that i love you're not stuck on a screen game paused waiting you to read the text and enter an input, so good game design decision here !
Anyway congratulations for having bein able to finish the game :) !!!