Just finish the tutorial and once you go into the menu for the first time, u'll get it

Just go into the Main Menu and press "U"

In the first menu choose reshuffle 2 rounds, then In advanced settings put on respawn and put on super power up, then start a round and u'll get it

In the menu, go into "Custom Levels" -> "Play a Level" -> "New Level"

In the menu, go to "Sumo Revise"->"Item Spawn" and Select "Splorch", then start the game, wait a couple of rounds and you'll get the achievement

To unlock this last map you need to play a lot of matches, even more than 100, to do that just leave the game running with one IA at least and minimize the game, after a while you will get the achievement

First, you need to unlock the last map "Mexico" and once you got it, go to the screen "Select Level", then go to the left of the level Mexico, in there you will see an empty space, just click ENTER and you'll get the achievement