Press and hold the fire key while the computer is loading the
 "T-800 vs. T-1000" sequence. You will be invulnerable.
 
 Hex edit T2.EXE
 For everlasting energy:
 Search for 89 44 10 60 E8 7F
 Change to: 90 90 90 60 E8 7F
 
 For everlasting bombs:
 Search for 89 45 68 60