Been a couple of days since i've posted. But I have made a bit of progress. Added a weapon system and UI to show what weapon is selected. However, you can not manually change the weapons, instead every time you hit an enemy with a bullet, the weapon changes to a bomb. You then have to place the bomb to resume shooting. The bomb has a spiral bullet pattern which can hurt you as well as the enemies. This is a bit of a strange mechanic but i feel it keeps the player moving round the room and makes it a bit more interesting.
I also finalised the room locking so you can only move to the next room once it is cleared.
I think the next thing i will work on is going back to the boss battle and implementing 3 stages of that. When you get to the boss battle the players health will replenish.
If I get time I will work on a menu UI and finally audio but i have a feeling that I wont be able to implement audio by the end of the jam.