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Sentry Minions were a type of minion that often took cover and folded out to scan the area around them with a spotlight. Sentry Minions could be easily defeated by shooting a team-mate with the Vac-U, who would then attack them from behind. However, if a hero was spotted by one, it will activate it's massive laser cannon to blast the hero. This blast is incredibly dangerous as it can kill a hero in one shot and it's hard to dodge. Running up to them guns blazing is useless (unless you have the Plasmabomb Launcher, which will easily fly over their energy shield) as they have an energy shield that protects them. The best way to take them out is to use either Plasmabomb Launcher, the Vac-U or use Doctor Nefarious stealth weapon to sneak up and surprise them.
- Ratchet & Clank: All 4 One (first appearance)