I wasn't aware they were doing this one but I have the other Switch R Type Dimensions (with 1 and 2)... It's about 200MB. Which is not surprising since it's just the original 2D games with sprites replaced with (decent, but still relatively simple) 3D models.
If the smallest cards on Switch 2 are so much more expensive that those useless key cards, it's ridiculous.
I don't want them for any game, but for a small game like that, key cards are even worse than usual. What's even the point of going for a fake physical release for a retro game like this?