Each time I get my ass handled to me after activating the 8th pyramid. So close, yet so far!
The strongest parts of the game are the graphics and the use of the theme. With graphics you made great use of the limitation. Using pyramid-shape as, well, pyramids may seem obvious, but it works really good! The particle effects add to the atmosphere, and really sell the sandstorm. Definitely one of the best looking games in this jam!
As for the theme use- this is how I feel "limited space" should be utilized. The space isn't only limited, but the limitation is a constant factor in the gameplay! Better yet- in your game you can BREAK this limit, but at a cost!
Compared with the theme use and presentation, audio is ok. The sounds tell me what's happening, the wind sound adds to the sandstorm particle effect, the pyramid sound is ok (maybe a bit annoying :))
As for the gameplay- as I said, I didn't manage to finish the game, so I think the difficulty is a bit high, especially for a jam game. If the turrets shots were just a bit more apart I feel like I could finish it :) Then again- the game kept me coming back, even though I kept dying in the same place. I kept trying different tactics (that devolved into frantically dodging shots).
Over all? One of the best games I played so far in this jam! Keep up the good work!