i played your game and first of all i have to say i love the graphics you are very talented in making pixel arts the game looks great. The main charakter is super sweet and loveable.
When i opened the game i at first thought the game doesent work on my computer because of the messed up menu. I dont even know what the other options are for. Even if the time was limited it would have been better just writting start on the big button so you would know where to press. The contolls work very well and the enemies behavior is smart.
The gameplay is entertaining adding some music and soundeffects would be awesome.
I like your entry for this competition especially the graphics however i encountered severell bugs and/or not working things that i want you to know about when you keep working on the game:
---At one point as i beated all enemies on the first room i went to the room on the right and after that room i choose the path down then the game crashed.
---Almost on every run the ammo given isnt enough to kill the enemies and so you get stuck in the second or third room.
---The Item that is shaped like a plus cant be collected.
---In some rooms there isnt even a weapon to collect.
---The Up and down scrolling isnt very comfortable as you cant really dodge enemies when they are coming from those directions because of the limited space shown above/under your character.
I hope this will help you fixing some things and please dont think i was disliking your game i had a lot of fun playing it i just wanted to point some things out that can help you improving this project in the future as i have seen in other coments that you want to keep on working on this game.