Twin Blades: The Reaping Vanguard

Twin Blades is a scrolling action game where the player must slaughter waves of zombies as they spring up from the ground, using both a variety of different guns and a very large scythe. Killing zombies nets the player zombie hearts, which can be exchanged at the monastery for weapon and power upgrades, including new guns, more health, and even new moves. There are several types of zombies, some of which are resistant to certain attacks, and every so often a much larger, more difficult boss creature will appear.

Source: TheGamesDB