The experience is alright, but it could probably use some more playtesting. Personally, I found a pretty bad moire effect with the mountains in the distance, re-texturing them might be something to consider. It was also annoying to not be able to tell how many bullets it takes to kill an enemy, especially when the first enemy in the game is way stronger than the others. It is possible to just jump over them, but then your screen will shake for the rest of the first level.
Also, saying that jetpack is "Up" was confusing, since I tried to use W but it didn't fire, so I thought it was a bug; turns out you meant that "up arrow" was for jetpack, so you need to have your left hand on WASD to move, your middle hand on the up arrow for jetpack, and your right hand on the mouse to shoot.
I appreciate the meme though.