The gameplay is solid for me, it takes a while to adjust as the enemies get spawned almost immediately at the start, but you can get by eventually and be used on keeping every node to function well. For me the easy seasons are the tornadoes and meteors, as for aliens, I find them kind of difficult due to their speed.
The audio and models work very well just as how they delivered the atmosphere, notably, with the cutscene everyone's talking about.
If the game is going to be updated or expanded out, I think the enemy's spawn at the start could do some adjustments/delay so that the player have enough time to prepare things out. Great work for all of it!