another post, about i made a game, and don't know what i did )
hint : in old c2 versions, the localhost:50000 was getting cached after testing and testing all over again, so when you'd be doing fixes or changes you'd be seeing endlessly the buggy version,
in order to fix that you need to go in c2 settings and change from the preview on browser instead of localhost to your ip localhost and add a firewall port approval , see if that helps there are a few info topics around here! if not check you bullet has the opacity 100%? is it default visible? is it spawning behind a solid background image? that you have it on a layer 1 and the bullet spawns on layer 0? etc etc ....
however if you have an older version as 140r/192r that means you might encounter some bug's or glitches in the version, else its your events , and 99% of the time, the how do i section is all about the same problem...