The HARDCORE MECHA - Round Hammer Particle Cannon DLC adds the Round Hammer Particle Cannon mecha for use in local multiplayer, online multiplayer, and training modes. This mecha is characterized by its heavy armor and reduced mobility, incorporating a self-destruction system to destroy test data. Its primary weapon in normal mode is a Particle Shotgun, with a secondary weapon that unleashes a Shock Wave to knock back enemies. It also includes a Light Melee attack called Graphite Scrambler to disrupt enemy movement and a Heavy Melee function that acts as a self-destruction system. In Sniper Mode, the mecha deploys a shield and transforms into a turret, utilizing a Heavy Particle Cannon.