Reward Challenges:
(✓) - Collect 10 Red Skulls (Golden Shroud of Cihuacoatl)
(_) - Reach the exit in 5 minutes or less (Dark Drum)
(✓) - Heal the rolling ball (Wind Drum)
(_) - Sacrifice 3 skeletons to the scorpion crest (Health Powerup)
(✓) - Jump to all 6 spider tile platforms (Ammo Powerup)
Collectibles:
(✓) - Ammo Powerup (1:40)
(✓) - Ammo Powerup (7:16)
(✓) - Health Powerup (3:44)
(✓) - Health Powerup (10:37)
(✓) - Chaingun (4:39)
(✓) - Mask of Ehecatl (3:12)
(✓) - War Drum (9:48)