Dark Rift 

Play as Sonork 
At the title screen when the word "Start" appears, press L, R, C-Up, C-Down, C-Left, C-Right. If you entered the code correctly, you will hear a sound.

Play as Demitron 
At the title screen when the word "Start" appears, press A, B, R, L, C-Down, C-Up. If you entered the code correctly, you will hear a sound.

Play against Demitron 
At the title screen when the word "Start" appears, press Up, C-Left, R, Right, Down, B(3), C-Up. If you entered the code correctly, you will hear a sound. Now a special Demitron vs. Demitron match will begin.

View character endings 
Enter one of the following controller actions at the title screen when the word "Start" appears to view the ending for the corresponding character:

Aaron 
Press Up, C-Left, R, Right, Down, R(2), C-Left.

Demonica 
Press Up, C-Left, R, Right, Down, R(2), C-Up.

Demitron 
Press Up, C-Left, R, Right, Down, L(2), C-Down.

Eve 
Press Up, C-Left, R, Right, Down, R(2), C-Right.

Gore 
Press Up, C-Left, R, Right, Down, R(2), C-Down.

Morphix 
Press Up, C-Left, R, Right, Down, R(2), B.

Niiki 
Press Up, C-Left, R, Right, Down, R(2), A.

Scarlet 
Press Up, C-Left, R, Right, Down, L(2), C-Left.

Sonork 
Press Up, C-Left, R, Right, Down, L(2), C-Up.

Zenmuron 
Press Up, C-Left, R, Right, Down, L(2), C-Right.