You sound a little angry. Anyway, here are some examples of 3D on the GB/GBC which I feel give a pretty good impression of what the system is capable of for those that are interested in keeping within the restrictions.
GB games that are '3D':
- Faceball 2000 (raycasting?) https://www.youtube.com/watch?v=KQAhnNiOu54
- X https://www.youtube.com/watch?v=AyjU4MtonZM
GBC games that are '3D':
- Toy story racer https://www.youtube.com/watch?v=Z8nLpO-WaUs
- Alone in the Dark https://www.youtube.com/watch?v=NMrlVcgR240