The SGAMES.DAT file in the game directory holds the saved games info.
 There may be info for multiple saved games in this file, but this
 cheat document will only talk about the first one. 
 Position 13 (Hex 0d) is the level number.
 Valid values are Hex 00 thru 0e.
 Hex 0f does show a "Debug" level, but it doesn't seem to work.  
 
 Position 21 (Hex 15) is the Primary Weapon. 
 
 Position 25 (Hex 19) is the power of the Primary Weapon. 
 
 Position 29 (Hex 1d) is the Secondary Weapon. 
 
 Position 33 (Hex 21) is the power of the Secondary Weapon. 
 
 Note 1: In the game, the primary weapon always needs a "recharge"
 period after being fired. If the secondary weapon is given a hex
 value normally used for the primary weapon (hex 00 thru hex 03), it
 will have continuous fire. 
 
 Note 2: If you want to keep whatever weapons combination you set up
 here, do *not* pick up any weapon powerups in the game! 
 
 The following tables list the valid combinations of weapon and power 
 entries and descriptions of the resulting weapons. 
 
 Table 1: Valid for Primary and/or Secondary Weapon 
 
 Weapon, Power Weapon Description
 00, 00 Machine Gun
 00, 01 Max Machine Gun
 00, 02 Super Machine Gun
 00, 03 Ring Machine Gun
 00, 04 Multiple Ring Machine Gun
 00, 05 Yellow Beams
 01, 00 1-shot Shotgun
 01, 01 2-shot Shotgun
 01, 02 3-shot Shotgun
 01, 03 2-shot Super Shotgun
 01, 04 4-shot Super Shotgun
 02, 00 Blue Beams
 02, 01 Stronger Blue Beams
 02, 02 Rapid-fire Blue Beams
 02, 03 Continuous Blue Beam
 02, 04 Rapid-fire Super Beams
 03, 00 Flamethrower
 03, 01 Flame Gun
 03, 02 Super Flamethrower
 03, 03 Super Flame Gun
 03, 04 Crawling Flamethrower 
 
 Table 2: Valid for Secondary Weapon Only 
 
 Weapon, Power Weapon Description
 05, 00 Yellow-beam Mortar(2 shots)
 05, 01 Rolling Mortar(2 shots)
 05, 02 Bouncing Mortars(2 shots)
 05, 03 Flying Mortars(1 shot)
 05, 04 Homing Mortars(1 shot)
 05, 05 Bouncing Flame Mortar(3 shots)
 07, 00 Rifle(Continuous)
 07, 01 4-shot Rifle(Continuous)
 07, 02 7-shot Rifle(Continuous)
 07, 03 Ring Rifle(Continuous)
 07, 04 Multiple Rings Rifle(Continuous)
 08, 00 1-shot Shotgun(Continuous)
 08, 01 2-shot Shotgun(Continuous)
 08, 02 3-shot Shotgun(Continuous)
 08, 03 2-shot Super Shotgun(Continuous)
 09, 00 Blue Beams(Continuous)
 09, 01 Stronger Blue Beams(Continuous)
 09, 02 Rapid-fire Blue Beams(Continuous)
 09, 03 Continuous Blue Beam(Continuous)
 0a, 00 Flamethrower(Continuous)
 0a, 01 Flame Gun(Continuous)
 0a, 02 Super Flamethrower(Continuous)
 0a, 03 Super Flame Gun(Continuous)
 0a, 04 Crawling Green Flame Gun(Continuous)
 0a, 05 Green Flamethrower(Continuous)
 0b, 00 Mortar(Continuous)
 0b, 01 Rolling Mortar(Continuous)
 0b, 02 Bouncing Mortars(Continuous)
 0b, 03 Homing Mortars(Continuous)