Nice work. This could be a decent game.
I love the way he "bounces" when he runs. Small detail but I love it.
Maybe a bit more story line for each screen when you travel. Perhaps a narrator or the characters thoughts as you move forward.
Small grammar error but, that's a minor detail.
Perhaps he could gain of abilities while progressing. Like shooting, telekinesis, double jump, wall climbing etc.
Good work. I would love to see the full version.