GEDE01
Eternal Darkness 

Press Z + A to turn infinite health on
205B40F0 00000110
04201DAC 60000000
04201DB0 60000000
E2000001 80008000

Press Z + B to turn infinite health off
205B40F0 00000210
04201DAC 4800004D
04201DB0 38000001
E2000001 80008000

Press Z + X to freeze sanity level
205B40F0 00000410
04038B28 60000000
04038BE0 60000000
E2000001 80008000

Press Z + Y to turn sanity back on
205B40F0 00000810
04038B28 B38300E6
04038BE0 B38300E2
E2000001 80008000

Freeze magic levels
04038BF4 60000000