WOW, what a great game! Awesome sprites, bosses, artwork of the backgrounds, upgrades that really matter and music, thats the most insane part - original soundtrack with 3+ good tracks and really fitting too!
The only complaint is that with our progress and upgrades - the challange not really building up, the last boss was by far the easyest and died really fast with all the buffs I got.
More bosses, more upgrades, MORE , MORE, MOOOORE!
Great game, love it!