You require a lot of Bolts to unlock all weapons and the Platinum trophy in Ratchet and Clank Size Matters, so I've made a quick guide for farming bolts to help speed up the process.
There are two methods in this video.
Method 1 - 900,000 Bolts per 2 minute Requirements: Complete Medical Outpost Omega in Challenge Mode, Change PS5 Time
Method 2 - 1,200,000 Bolts per 2-minute Requirements: All Skill Points and Challenge Mode Unlocked
0:00 Intro
0:05 Unlock Metalis Teleport in challenge mode
2:00 Travel to another planet
2:24 Change PS5 time to unlock new teleport
3:14 Method 1 Farm
6:43 Method 2 Farm (Requires All Skill points)