I liked the voice lines; they add a lot of personality.
The jump feels a little sluggish. There's a noticeable delay between pressing the jump and the squirrel leaving the ground.
I think making extra double jumps cost acorns may have been a mistake. At the very least it felt pretty frustrating while playing. "What's the point of using an extra jump to avoid an obstacle if avoiding the obstacle and getting hit by it have the same penalty?" was my thought process a lot.