^ Metal Gear Solid 4 pack is the first one that really adds new levels and gameplay options. The paintinator and sticker switches alone can possibly enable you to make side scrolling shooters.
I think that pack is going to sell really well.
iPhone = Great gaming device. Don't agree? Who cares, because you're wrong.
Currently playing:
Final Fantasy VI (iOS), Final Fantasy: Record Keeper (iOS) & Dragon Quest V (iOS)