Well, unfortunately I've never heard of R-Type so Gradius is the first thing that came to mind. Darius was another game that I thought of. Also, Gradius came out before the first R-Type game so at least I didn't pick a game that came out after either of those. :P
Yep, both Division games are online but you only need PS+ to play with other people. Some of the features in the NBA2K games like MyCareer are also online (though there are offline modes), but you need PS+ to play against human players online.
Yeah, just bring it to a store that has Mario Kart in stock and they should be able to swap it out no problem (bring your receipt or packing slip with you).
Pichu, Pokemon Trainer, and Isabelle are up for pre-order on BB
https://www.bestbuy.com/site/nintendo-amiibo-super-smash-bros-isabelle/6255155.p?skuId=6255155
https://www.bestbuy.com/site/nintendo-amiibo-super-smash-bros-pichu/6255154.p?skuId=6255154...