We apologise for the late review:
Very well put together GDD,I am very happy with the completeness and number of sections. I particularly like the concept art and your workflow schedule. The GDD was effective at setting the games vision and showing where you wanted it to go.
Game ran smoothly without any issues. I really like how you have to take the terrain into consideration when movin, especially when encountering ranged enemies. That being said you can also use the terrain to your advantage. Great level design overall.
A nice set of uniqueness with the different abilities that the player is able to learn. The fuel gauge also means you can't spam your attack mindlessly so you need to pay attention.
The theme music is great, the ability sound effects could be tweaked to be more congruent with the rest of the audio.