I played the debugged version.
It's not hard - which is great! I find it relaxing to just go around and succefully shoot enemies in videogames. It's a bit weird that enemies who are far away don't shoot at me, but maybe it's good that way. :D It's easy to get rid of them when they are too far tho. It was a bit weird for me that I can't scroll through the weapons both ways.
In the second level, I was a bit confused where I should go. It was less enjoyable when I had to sacrifice something. No sprinting - sad. :(
I was scared when I sacrificed jump in the third level. Glad that you thougth about that so I could just walk above the obstacles. Some enemies could aim at me through walls which was unpleasant.
I could easily defeat the final boss before entering the final level. I'm a bit surprised by your choice of representation of the final boss.
When I hit an object, a black ball appeared. I believe you wanted to create a hole. I can be artistic with tha balls tho. :) Minus points for I can't destroy the bonsai trees. :D
I like the menu animation and the fact that you thought about players wanting to pause the game. I also like the little details like graffiti and machines. It's more pleasant even with few added details.
The music is simple yet effective, great choice.