@yourmajesty18 You actually have to hit sell but don't buy anything to see the other launchers. The other thing is that a tip on the side will say that you get 100% of the money you put into your items so feel free to experiment. No need to hoard money unless you have bonus points in interest.
@killerlady Actually ignore that last comment. I was thinking of wrong thing. That EZ upgrader lets you buy upgrades without going into the shop. One at a time but you can buy them. (Not angel upgrades)
@mandude81 Had a game where I went 10->49 and accidently ran into combat when checking the last corner of the room. Now that ill tell you wasn't fun..... Remember kids when you are low on supplies, take it slow and if you are in a pinch, wing out!