Reward Challenges:
(✓) - Collect 10 Red Skulls (Fist of Tezcatlipoca)
(✓) - Reach the exit in 15 minutes or less (Jade Heart)
(✓) - Rest a ball atop the skull pedestal (Health Powerup)
(✓) - Step on the 3 hidden spider tiles (Ammo Powerup)
Collectibles:
(✓) - Ammo Powerup (1:33)
(✓) - Ammo Powerup (6:50)
(✓) - Health Powerup (1:41)
(✓) - Health Powerup (5:20)
(✓) - Dual SMG (4:36)
(✓) - Stone Serpent (3:13)
(✓) - Mask of Tezcatlipoca (13:34)