(For everyone complaining about the energy level.) play the campaign until you run out of energy. Then go to the arena and let it recharge because it doesn't use any energy to fight in the arena.
I am just awestruck... I really can't find something I don't like about this game. 5/5 for sure. Thanks to all the developers, designers, and anyone else who had something to do with the creation of this game.
An overall good game 5/5. Not very much to note except for the seemingly large amount of time it takes to level up. Also by switching between weapons it cancels out reload time. Hence being able to spam rockets and win really easily =)
Good game, Very good artwork and classical music that i ACTUALLY liked. However i am not the most coordinated person when it comes to music and I could barely hit any of the notes right to get the birds XD