Kill 100 Red Dudes in melee.
Kill 100 Red Dudes with a katana.
Kill 2 Red Dudes with one katana throw.
Kill 3 Red Dudes with a single shotgun shot.
Kill an enemy by jumping on him.
Beat all Challenges.
Get RED ending in every level of SPEEDRUN challenge.
Get RED ending in every level of SPEEDRUNrt challenge.
Unlock all endless levels.
Kill over 1987 Red Dudes in endless mode.
Score 100 headshots.
Kill 100 Red Dudes with a pistol.
Kill 100 Red Dudes with a shotgun.
Kill 100 Red Dudes with a rifle.
This game contains additional secret achievements. These currently cannot be retrieved from Stadia.