When I was eleven years old, it was a very good year, and I can remember my daily routine vividly. These were the years before I owned a Sony Playstation, and I used to venture to my friends house - everyday after school - to watch him play through Final...
Go for the Space Tiffin on every level, for you'll get extra points and a power boost.
Focus on the green and red blobs - those are the ones you need to kill to finish the level.
You can shoot the triangular walls that get in your way.