This is impressive! Really well done and polished! The gameplay is really smooth and fun to play, the game looks really stunning with nice pixel art, and there's also a boss battle too! What can you ask for more :) Done the game first try so I guess it's not that difficult, but it's challanging alright! Finish the game with under half a minute to spare, though.
Other things I like:
- Ultra stylised aesthetic, which brings so much character into the game
- Really nice upgrading system, these mix into the game so seamlessly
- Really fun "out of time" mechanic, though slightly too exploitable (I didn't do that though)
- A good variety of weapon choices
- The sounds in the game are really nice and fitting
- Nice pausing effect when getting hit. Really punchy
Suggestions:
- I would suggest some other colour for the player bullets to distinguish them from enemy bullets, this makes the game much easier to see, especially when you are using the shotgun
- I dislike the fact that you need to buy the gun in order to change it. I think I've spent too much money on buying guns thinking they are stright upgrade. Eventually settled on the burststar, but that wasted me so much money just to test things out. Consider buying once and changing at will for weapons
- I would suggest some more hazards during out of time, it's currently too safe out there
Anyway, I think this is one of the most polished and one of the best games I've played so far in the jam. Definitely a winning contender. Well done!