Roboquest

You can do this right at the start of the game in under ten minutes by bringing Buddybot to the smith under the waterfall.

- Right before the end of the first checkpoint in the Canyons there will be a robot that won't shoot you. Pick it up to unlock Buddybot
- Once inside the first checkpoint, head inside the door labeled 'Oasis' and finish the level
- As soon as you load into Oasis, head inside the waterfall and present the Buddybot to unlock the door. Present the Buddybot to the smith to upgrade it to a Fantastic Weapon


Doing this will also unlock the following if you don't already have them