Ironfall: Invasion might be the best 3DS game you can play this summer, it is a third person shooter in which you fight a bunch of robot aliens, i recommend you use a Circle Pad Pro with the old 3DS or just go and buy a new 3DS, regardless, which ever version of 3DS or 2DS you choose to play it on, make sure you grab it very soon as it might just get taken down from the eShop.
Why should you download it ?
1.) Its a great game.
2.) Its free.
3.) Because Smealum said so.
Here is a trailer for the game:
If the game does not appeal to you, grab it anyhow, as mentioned above it is recommended by Smealum: