Mars 2120 - All Bosses (No Damage) & Ending

[@SailorPalutena]

I can't damage this Gigas Viridis boss. I haven't the fire weapon yet.

[@MegaYoYo]

Have you tried using the electric blaster? That should do the job just fine

[@DuyVo-zi4pu]

Use charged ice attacks to freeze it.