Item description:

1. Caiman Conquered
- Finish the tomb (go straight, turn right, then go straight ahead) for Caiman Conquered.
2. Leaping Lizards & 3. Ready To Rumble
- Talk to Jonah in the courtyard. Watch/skip the cutscene for Leaping Lizards.
- After the cutscene, go back to the base camp you spawned from and use it to equip the Whispering Scourge - Pandemic shotgun and the Reptile Hide - Leviathan outfit for Ready To Rumble. Exit out of the inventory menu for the trophy to pop.
- If you want to limit resigns you can just play on from Caiman Conquered; there's a short battle and then you're back to Jonah. But the loading screens are so long that it's probably a wash in terms of time saved, which is why I made a separate save.
4. Zip It & 5. Offshore Count - Resign both parts of the save. Complete the Time Attack and Score Attack for the Zipacna's Craving tomb, and any time/score you get will unlock the trophy, even if it's not good enough for a bronze.