It may not be a complete main series game. It might, however, be a new take on a main series game. So before they start making games like it. They have these to run from. That way it's not a change that's set in stone and nothing new added to the game systems permenantly yet.

It is weird! The leakers sometime ago did state "the names of the games would raise a few eyebrows." So the fact these are doing JUST that to us now is proof enough. I guess we will see for sure by the end of the month.

The Nintendo E3 will be forcuses on Smash Bros, Pokémon, and Metroid Prime. So there's something to look forward to!