The Sentinel Hexapus Kolobok is a type of Layil Empire war machine featured in Sine Mora. One is fought by Lynthe Ytoo as the boss of STAGE - I.A, where it ambushes Ytoo during his assault on the Moneta Point research base. After most of its external armour and weaponry is destroyed, the sentinel retreats. It is encountered again soon after, but can only use its tentacles to attack, making this phase of the fight relatively easier. Destroying all of the Kolobok's tentacles during the second phase in Arcade or Score Attack is required as part of obtaining the Salva Veritate achievement.