The music slaps! I like the transition into a different tune to signal that time is running out. Oh and the funny voice clips add so much personality too. XD
Cool skill tree! I like how the powerup descriptions also tell a part of the story and lore.
The tutorial is a nice touch although I feel it needs some adjustment. I started shooting up without moving and basically killed a couple of enemies off-screen before even reaching that part of the tutorial so I was a bit confused. Adding some walls to break down the area would probably help.
While the combat is simple, it doesn't get old even after multiple loops, especially when you've unlocked a fair number of powerups. The start is rough as time runs out quite quickly but I focused on time extension first and things got a bit more manageable.
With a fully unlocked skill tree, beating enemies is a breeze and even the boss fight ends quite quickly. XD
I have to say, though, I completely forgot about the special abilities. Just attacking and dodging normally was enough for me to enjoy the game.
I went back after beating the boss and tried using the abilities. The speed up and freeze enemies felt a bit too OP while the invulnerability felt unnecessary when you have fast speed to dodge and high HP/defense to absorb a bunch of hits.
Fun game! Good job, team!