LogFAQs > #969775263

If you haven't done the Wario stages, then you're only done with half the game.

and yeah there's a lot of Jupiter picross games (S1-8 plus a Sega themed one and Kemono Friends and Overlord themed ones), and they're all pretty similar other than the later games adding color puzzles and bonus puzzles if you've got a save file from previous games. I'd say that the Kemono Friends one is the worst one since it lacks the color puzzles and most of the puzzle images are extremely similar to one another, though S1 and 2 also weaker overall since they lack color puzzles (well, you do get bonus puzzles in the later games if you buy them).

they go on sale fairly often (like when a new one is released), and each one would probably last you about 40-50 hours so just getting one or two would last you a while and maybe til the next time they go on sale.