way too easy imo. i died 4 times in the whole game and that was me being careless (or maybe i fell asleep). you need to lower the money given out per kill. i had upgraded to crazy strong my the 8th level not even trying and by level 11 i had everything. i beat level 11 without having to move of defend. i just placed my ship in the middle with all upgrades and i killed everything automatically. usually the most fun and hardest bullet hell kind of games are the ones that look super simple. this is not one of those times.