In which I play "Monex" a 2005 game release from Matosimi and Poison. As you may have gathered from the name of the game, it's a "money exchange" thing where you pick up money, or stacks of money, from the top and drop them down to exchange them up to the next higher denomination. For example, 2 x 5s makes a 10, 5 x 10s makes a 50, and so on.
This is the sort of game that I quite like, and this one is nicely put together.