Shooters and top-down bullet hell games are a dime a dozen.

Enthusiasts of the shoot 'em up (schmups) genre have plenty to choose from. They're known for being devilishly difficult, however, so there's a sampling of particularly punishing shoot-'em-ups out there to bring any experienced player to their knees.

To commemorate the release of one particularly excellent shooter, Mamorukun Curse!, we've rounded up ten of the most difficult shoot-'em-up/bullet hell games around. Check out our choices and let us know if you've got any other suggestions to add. 

RELATED: Microsoft Finally Reveals Xbox One Details, It's Mostly All Bad News

RELATED: Microsoft's Answer to the Xbox One and its Internet Requirement: Get a 360 (Video)