i liked the graphics and the jumping feels well done it was just frustrating to jump across long distance platforms without falling and it seems like you only make the jump when the game lets you because i did the exact same thing every time, the levels are well designed and the obstacles are perfect you made a good choice NOT adding enemies and sticking to jumping over things and avoiding balls shooting at you, the levels were the perfect length and you should keep it this way, very well done.
It wasn't that bad the only thing I didn't like was those weird,little things that move you.
Not bad. I only stopped playing so that I would get off of the computer for a bit, but I certainly enjoyed playing it, and for a random Portal entry I have certainly seen a lot worse, just in the past day. Keep doing what you're doing, and hopefully this game will set that teacher straight!