I will be honest witch you during showing you these stats:
Normal:
-Average amount of bullets shooting by foes
-Only chosen foes drops bullets (domage player)
-Low score to earn
Recommended for everyone
Hard:
-Big amount of bullets shooting by foes
-All foes drops bullets (domage player)
-Well score to earn
Recommended for precision skilled players
Heavenly:
-Amount of bullets shooting by foes= HOLY S**T
-Foes drops more bullets (domage player)
-Very good score to earn
Recommended for pro skilled players in bullet hell category
Also you have a chance to earn more archievments with highter difficulty!
If you think "heavenly" difficulty is still to easy or you want challenges you can bought and use handicaps (also gives more score multiplier)
BEWARE: Using cheats makes game easier but reduces score multiplier.
Contact me for more help (draw in google search):
armorgames.com/user/rico682