Here is the full list of all 24 BloodRayne Betrayal: Fresh Bites achievements.
Collect all the Ancient Vampire Skulls.
Defeat Crab Puncher without getting hit.
Complete the game.
Defeat the Zeta Gamma.
Obtain a power from Raven.
Face off against Kagan.
Complete any level while taking no damage.
Collect half of the Ancient Vampire Skulls.
Obtain the Sun Gun.
Kick open the Coffin Rocket 20 times.
Finish any level with the ranking of "Dhampir".
Kill 250 enemies with environmental hazards.
Find the hidden idol.
Chain-explode 5 enemies.
Defeat the Crimson Demon.
A mysterious ally helps Rayne.
Defeat Crab Puncher MK.2.
Hop on 50 heads in a row without touching the ground.
Kill 5 enemies with a single gunshot.
Collect a Large Treasure.
Defeat Crab Puncher.
Show Mercy.
Enjoy a drink.
Collect an Ancient Vampire Skull.