Surveillance Robot

They act as enemies or as background objects spying on Crash.

Crash Bandicoot
 Level 16: Heavy Machinery 

Cortex created these little robots to act as spies and surveillance cameras, they were then sent throughout his establishments to do their jobs, the Sapient one was not present as its owned by Oxide not Cortex.

Crash destroys a few on his way through the Factory Area outside Cortex Power Station, the Sapient Surveillance Robot was not present.

 Level 18: Generator Room 

Crash comes across more Lens Probes in The Generator Room, still the Sapient one was not present, Cortex used one to project his angry face on all the Generator Room's Monitors.