Line Scorer
Not unlocked yetThe line - Make at least a score of 5 000 000 pts in the line mode.
Nightmare's Slave
Not unlocked yetFinish the Stage 1 with Nightmare difficulty.
Nightmare's Survivor
Not unlocked yetFinish the Stage 2 with Nightmare difficulty.
Nightmare's Apprentice
Not unlocked yetFinish the Stage 3 with Nightmare difficulty.
Nightmare's Soldier
Not unlocked yetFinish the Stage 4 with Nightmare difficulty.
Nightmare's Conqueror
Not unlocked yetFinish the Stage 5 with Nightmare difficulty.
Nightmare's Master
Not unlocked yetFinish the Stage 6 with Nightmare difficulty.
Nightmare's Lord
Not unlocked yetFinish the Stage 7 with Nightmare difficulty.
Nightmare's God
Not unlocked yetFinish all the Stages with Nightmare difficulty.
Overdriven Reloaded !
Not unlocked yetComplete Successes "Overdriven" and "Nightmare's God". (On the same save file)
End of the World
Not unlocked yetFinish the game in Arcade Mode
Octopus saved
Not unlocked yetDon't kill any octopus in the 2nd Stage.
Octopus killed
Not unlocked yetKill at least 10 octopuses in the 2nd Stage.
To the end !
Not unlocked yetFinish The game in Manic Mode.
1CC
Not unlocked yetFinish the game in Manic Mode using only one credit.
Meatballs for me please !
Not unlocked yetFinish the 6th Stage. (Special Edition)
The Gas Giant.
Not unlocked yetFinish the 7th stage. (Special Edition)
8th Hardcore Gamer Degree
Not unlocked yetFinish the 6th stage with at least Hard difficulty. (Special Edition).
9th Hardcore Gamer Degree
Not unlocked yetFinish the 7th stage with at least Hard difficulty. (Special Edition)
Nightmare's eater
Not unlocked yetFinish the 6th stagewith Nightmare difficulty. (Special Edition)
Nightmare's voyager
Not unlocked yetFinish the 7th stage with Nightmare difficulty. (Special Edition)
The Space farmer
Not unlocked yetFind the 10 space cows, on the same save file. (Special Edition)
Guardian of keys
Not unlocked yetFind 40 Alien Artifacts, on the same save file. (Special Edition)
Lord of keys
Not unlocked yetFind 45 Alien Artifacts, on the same save file. (Special Edition)