Hello! I have some questions and ideas on what to add to a small FPS game. no reasons just wanna make it as goofy and such as i can. Put down some suggestions and ill mostly prob take a look at some.

every time X, the walls slowly close in on you
i.e. instagib but everytime you move the walls move too

Also add a gun that shoots game boxes containing other FPS games, since you named the thread "making a first person shooter shooter" ;)

you smartass xD