Even though it's another block puzzler, Lumines feels A LOT fresher than Super Puzzle Fighter II. If both were on offer for me on PSP, I would take Lumines.
Agreed. After 70-100k games, my eyes take a while to adjust to distance viewing again. It's like they're focused so hard on such a small space (that has small blocks) with no break that the focus of my eyes "locks" and it takes a while to get it back to normal when I put the game down. It only seems to happen with Lumines, for some reason.