Wow
Man, this game is amazing. Those graphics are incredible! The way he moves and the lasers, and the enemies are all top notch; I think everybody here agrees about that. Personally, I could see the lasers pretty well, but some people couldn't, which I thought was understandable since they were similar colors on the first level. I liked how the awesome background changes to other awe-inspiring backgrounds every level (BTW, its easier to see on the second level, it's darker), sadly I only got to Level Two before dieing.
But it has some fatal flaws.
Primero: el Camera. That thing was killer (and not in a good way, like, it literally killed Captain on multiple occasions). It would be really great if it was like that when you first spawned, and zoomed out when you moved, BUT stayed zoomed out. If you want it to move while your still, make it zoom in only very slightly.
Dos: the Movement. This was good and bad. Overall it had it down, but it seemed you were stepping on ice to much. Bit too slidey; either git rid of it or reduce it plenty. Also, when you jump and fire at the same time, you fly backwards way too much. Makes it tough to aim.
Overall, awesome game. Fix the flaws and you fix yourself in portal history.