Problem with deleting objects in mission

Hi, I have been just toying around with TGE for now because I am very new to it. I'm not exactly sure how these objects came into my mission but everytime I open a new mission these two objects or sprites are always there in the same spot everytime! It's the same objects everytime to, the first I can't even tell what it is it's not very visible but I know it's there because I see a red dimond in its place and when I click it it has values and things in the side bar in the gamespace. The second Appears to be a blue man made up of blue blocks! I can move these around and stuff but I cannot delete them! Everytime I select them and hit delete or look for delete in the bar on the top of the screen they won't delete! But the weirdest thing is that everytime I start a new mission (and I know I've NEVER saved a mission yet)
they are always there and always undeleteable! I would just like to know whats up with this and how to fix it! Thanks.