I would make an anime in which a boy finds a stray neko who's dying of hunger
And the Earth is at a stalemate in a war with the ALIENS *waves arms madly* \: D/
And after a while he realizes the neko is a little strange... a little too strong and quick to recover for a neko who was starving a few days ago.
Then his village gets attacked by the ALIENS *waves arms madly* and they're pew-pewing the village and burning down houses and getting closer and closer to his house and his parents are screaming and his baby siblings are praying and it looks as if the world is gonna end for him when the neko mews and runs out of the house. "Neko, no!" he screams, running after it, for he loves this little neko because he always wanted to keep a cat.
The neko is pawing and clawing at the ALIENS *waves arms madly* and they aren't even paying attention to it when all of a sudden the neko TRANSFORMS
into a giant neko war machine with machine guns and rocket launchers and drives the aliens off.
The boy realizes that his neko is an escaped war weapon, and is arrested by (whatever his country's secret agency is) who arrest him for having 'stolen' (they know the neko, being a neko, escaped but don't want to admit it) their front line of defence against the ALIENS *waves arms madly*, but since the neko has become attached to him they have no choice but to take him in and have him as the neko's companion and guide because they have to keep the neko happy and healthy since it's their only chance to save the Earth from the ALIENS *waves arms madly*
Then they have adventures and save the world in the end.
It would have Bullet For My Valentine's 'Raising Hell' as the opening song and Avenged Sevenfold's 'A Little Piece of Heaven' as the closing one.
Influences (all subconscious, I guess, I wasn't thinking about any of them when I came up with this idea):
- AC/DC's song 'War Machine'
- Black Rock Shooter: The Game
- Eragon? No way mate, this book sucked, no way I'd have that.