The game looks great. If you still want some tips on how to do object collision in DBPro, some of this code may help:
automatic object collision object number, radius, response
You could also try cycling through all your objects like this:
objectcycle=2
objectcollided=0
while objectcycle<12
if object collision (1, objectcycle) then objectcollided=1
inc objectcycle
endif
if objectcollided=0
rem code for object and camera movement here
endif
I haven't tested this code yet so it may not work but checking for collision would go something like that.
If you give a man some fire, he will be warm for a day. If you set a man on fire, he will be warm for the rest of his life.