Developer daaa57150's Mega Drops is a hodgepodge Puyo Puyo-inspired puzzle game with bits from Tetris Attack, Magical Drop 3, Lumines and DJ Max Portable.

The gameplay is quite simple. It all starts with a pair of falling blocks. Your goal is to match the shapes. String together four blocks of the same variety and they explode into nothingness. To make life a bit more challenging for you, lines will emerge from the bottom and you have to deal with them.

Same script as with all falling block-inspired game: once the blocks have nowhere to go, you're a goner. Mega Drops feature two different levels with three difficulty modes. Some electro music is at hand to keep you entertained as well. Be sure to check the tutorial to get you started.

Download: Mega Drops

Kakuro Nichiyou PSP version 1.1 is described by its developer MK2k as the younger brother of the very popular Sudoku puzzle. Kakuro, to most people, is the math version of the newspaper crossword. 

Gameplay is simple as well. You will just set numbers in the free spaces. But knowing where to set those numbers is a different story. So good luck with that. You can put in small numbers from one to nine to help you out, something like playing the crossword with a pencil.

Puzzle makers all over the world contributed to the 234 hand-picked and created puzzles for Kakuro Nichiyou. That's a lot of puzzles to go around. You can save your game under twenty save slots. And if you're at your wit's end, MK2k installed a problem solver - but only for 203 out of the 234 available ones.

Download: Kakuro Nichiyou PSP v1.1 (Newspaper Edition)