From the ChAIR team:
1 Learn how to use combos! You can also mix any of these up by starting with Right/Down/Up and changing the relative direction in the pattern and learn how to do a 5-hit combo!
Left, Right, Left = Huge Hit (Does the most damage you can in a 3 hit window)
Left, Left, Right, Right = Mega Hit (Does the most damage you can in a 4 hit window)
Left, Right, Up, Down, Left = Ultra Hit (Best, this does the most damage you can in a 5 or greater hit window)
2 Use your shield wisely. You can block with the shield, and you can also slide your pinky straight off of the shield to swipe your sword. Theres no need to lift your finger. You should consider saving your shield for end of fight when your health is low since it is the easiest way to chip off the last few health points. But be aware - some boss attacks rip straight through your shield, so get to know which ones, and dodge instead.
3 - Pay attention to the XP of your weapons and items. If they are mastered, switch them out before the next battle. Mastered items double in value, so you can sell them in the store if you need more gold.
4 - When fighting the 15 foot Titans (the ugly bad guys who look like the Feral Troll), pay attention to which side he smashes his weapon to the ground. If he smashes on the right side, dodge to the right shortly afterward. If he smashes on the left side do the same on the left. It's a good indicator of which way to dodge.
5 - Pay attention to the Titan's info. For example, if he is immune to fire, be sure to equip an Ice Sword, Ice Ring and a Fire Shield. This way you can do maximum damage to the boss and also block his attacks.
6 - Remember to look for loot between fights. Health vials are precious and you can find tons of gold just lying around in the world. You can use the fast forward button to quickly get to the next fight, but you'll miss out on items.
7 - Use magic to your advantage. Find rings that allow a good balance of offensive and defensive spells - a well timed "Heal" spell can be the difference between destroying the God King or leaving your kid to mop up your mess...
8 - Try using block and dodge to defend the first few attacks of an enemy combo, to get in more scratch hits between enemy moves. After the third or fourth enemy attack, try parrying to score the larger damage window at the end of the combo, especially if you get a stab or sword clash opportunity.
9 - In between fights, equip your items with 'gold+' attributes to get more gold from any money bags or treasure chests you find.