Taken from TOTO unit (MK-III) user guide / Section 4.1:

Within the TOTO’s mechanical body is a veritable arsenal of offensive and defensive tools. Its primary weapon is the annex cannon, a back-mounted laser capable of collecting phased energy from the air. Once the protons are fully charged within the cannon, a process that takes only seconds, the TOTO can fire a powerful particle beam (output 127.000 – 430.000 EO). A cool down period of five minutes is required before the annex cannon can be fired again.

Danger Zone One. Story by Midnight. Art by Sikretwepon.