There are techniques that correspond with moving sets. For example, dealing with the rotating bombs. Wait for the bombs and strike as fast as possible with quick and sudden movement. Once you hit your target, get back to your original position. Some bombs will be marked with numbers. This corresponds the order in which they will turn into objects for you to slice. Most of the time, they are arranged in such a way where you can execute combos. For example, if you see bombs having 2, 3, and 4 in vertical line, you can safely slide downwards without worrying that the bomb will explode. This combo from bombs will let you get bonuses. After clearing a set of items, do not keep the sword near where new items will appear, or you may hit a bomb accidently. When done with a set, move your sword to the sides or all the way up.
Easy coins
Play in single player mode. The CPU is easier to defeat than the real opponents in multiplayer mode. After you are confident of your skills and have a good sword, try multiplayer mode.
Slicing
Grind coins to purchase the best sword you can have. Your best choices are the Pixelbrade (1,000 coins) or Multus Karate Chop (5,000 coins). Note: The strongest weapon costs 15,000 coins. There are different slicing techniques but they are based on the direction you do the slicing. You must learn to slice in four directions (vertical, horizontal, diagonal and reverse) but do so in variation.
Swords
The first sword you should purchase is the Pixelblade for 1,000 coins. After that, purchase the Multus Karate Chop for 5,000 coins because it gives you five more seconds. Next, save for the Golden Sword of Gold which doubles the coins earned. The last sword you will need is the one that costs 15,000 coins and slices in every direction.