It was difficult, especially given the perspective, although in my opinion that sort of added to the fun. Definitely seems like you guys put a lot of time into it and added a lot of different components (weapons, ai, alternate physics, some animation, music, high scores board) which is really cool.
This is an extremely deep piece. It seems simple on the surface, but it represents a very complex idea with very simple clear pictures. Those who do not grasp it either weren't paying attention or are shallow. I disagree with the point made, but it is truly a beautiful piece.
Shallow gameplay. I really liked the weapon choice and the team mate system, but it seems like the actual levels were the same thing again and again and again with just minor variations. Also, your teammates are clueless.
6000 feet was massively easy for me..I had to purposefully avoid it a few times in order to unlock a last few upgrades. 29 days after getting every last item - the key is to gain a lot of altitude, and try to get around 0-3% friction to slowly burn off your speed as you descend, so that your speed and your altitude descend at around the same rate.
 "Escape from Planet Zombie"){kind=icon}
 "Loved"){kind=icon}
 "The Enchanted Cave"){kind=icon}
 "The Forest Temple"){kind=icon}
 "SEAN AND MIKHAIL WARS"){kind=icon}
 "Learn to Fly"){kind=icon}
 "Casual Space"){kind=icon}