I really liked it. Though the controls were a bit 'floaty' as one other reviewer had said it really wasn't that bad, I certainly had no problem finishing the game. And to the comment that you shouldn't have to start over from the beginning when you die, seriously? You died? And on top of that the game is only 2 levels long. Which brings me to the main point of my review. The game was way too short, I was just getting into it and it was over. I would love to see this concept expanded, adding some new items, enemies and goals (kind of a part 2 but this is a bit short for part 1). I mean after all he does have to share his discovery, right. I smell an invasion or an exploration into the portals.
Really good job, and I really hope to see a second part/version. Keep up the good work 4/5 8/10.