I personally didn't like this game. Spamming a few buttons and constant moving between platforms is frustrating.
To get to a higher level, go into arcade mode and kill for exp.
This is first game which is essentially repeating the same idea over and over again where I haven't wanted to remove my eyelids with a pencil sharpener.
Good game. 4/5.
Good units and upgrade system.
Unfortunately, it requires no true skill providing you can spam buttons. Or for the lazy people who discovered this, hold down A, S, D, F and right click.
A nice way to earn badges providing you have the time.
To beat 'The End' have hobbits, mana and angels maxed. Simply spam into 'The End' till it dies.