Since most of the Free App of the Day games this week have been monster-related, let's mix things up a bit with a cute retro game that features an octopus! Or is it octopi? Wait, octopi is more than one octopus, isn't it? Eh, whatever, it's free!

Oh Hi! Octopi! is part arcade platformer and part color-matching puzzler. Get rid of rows of the same colored octopi to get to the next round. Arrange them to make combos, but the longer you take to clear the round, the faster they move.

The game was developed by kode80, who also made the popular retro title 1-bit Ninja. Oh Hi! Octopi! came out in early September and has gotten rave reviews.

Pick up your free copy of Oh Hi! Octopi! for your iPhone & iPad!