Watching a few cents turn into a ridiculous pile of cash is oddly satisfying once the systems start feeding one another. Darts, scratchers, and pachinko seem unrelated at first, yet the right upgrades can make them click together surprisingly well. The full version is already unlocked, leaving the whole upgrade pool open for experimentation instead of drip-feeding the better stuff.
There is very little button-mashing here. The hook is watching a scrappy collection of income sources turn into an absurd little money machine. Things stay fairly mellow at first, then the optimization rabbit hole opens up, especially when some overlooked upgrade suddenly makes an entire setup perform far better than expected.