Major Stryker Save Game Format
| Format type | Saved game |
|---|---|
| Save locations | Unknown |
| Elements saved | level, items, lives, difficulty, score |
| Games |
The Major Stryker Save Game Format is used to store a saved game Major Stryker, up to 10 in total. Each save will be named 'SR*.MS', with the asterisk replaced for letter A-J for save slot 0-9 respectively, though there is also a letter N used to hold the list of names corresponding to each save slot file.
File format
Header
The file begins with a single byte checksum in order to prevent tampering. The checksum is generated by summing most of the bytes in the save game file into a byte value, and throwing away the overflow. The first byte (the checksum itself) and the last two bytes of the file are excluded from this sum. The same algorithm is used to calculate the checksum of the HS Format (Major Stryker).
| Data type | Name | Description |
|---|---|---|
| BYTE | checksum | Checksum of the file. |
Data
| Data type | Name | Description |
|---|---|---|
| INT16LE | Fire power level | 0x01: Single shot forward 0x02: Double shot forward 0x03: Triple shot forward 0x04: Triple shot forward cone 0x05: Triple shot forward cone + Single rear 0x06: Triple shot forward cone + Single rear + Single side |
| INT16LE | Lives | Count |
| BYTE | Shield level | 0x00: No shield 0x01: Side shields 0x02: Spinning shields 0x03: Bubble |
| INT16LE | Burst level | Level is minus 1. (0x00-0x07 represents 1-8 respectively.) |
| INT16LE | Zap bombs | Count |
| BYTE | Level | 0x00-0x23 for level 1-36 respectively. (0x00-0x0B for Lava planet, 0x0C-0x17 for Arctic planet, and 0x18-0x23 for Desert planet.) |
| BYTE | Skill | 0x01: Beginner 0x02: Novice 0x03: Expert |
| INT16LE | Enemies total | Number of enemies encountered in all previous levels combined |
| INT16LE | Enemies killed | Number of enemies killed in all previous levels combined |
| INT16LE | Men total | Number of cryogenic tubes encountered in all previous levels combined |
| INT16LE | Men saved | Number of captured humans freed in all previous levels combined |
| CHAR[...] | Score | Player's score as an ASCII string, EOF terminated. |
Save slot names file format
Data
Each save slot is represented in the save slot names file by up to 24 bytes sequentially. There is no header or footer. Data is per-slot, with each following slot concatenated to its previous slot.
| Data type | Name | Description |
|---|---|---|
| CHAR | Slot number | Number is in ASCII (0x30-0x39 representing slots 0-9 respectively), space (0x20) terminating. |
| CHAR[0-22] | Slot name | Save slot name up to 20 characters, CRLF (0x0D,0x0A) terminating. |
Credits
This save game format was reverse engineered by Adambean and K1n9_Duk3. If you find this information helpful in a project you're working on, please give credit where credit is due. (A link back to this wiki would be nice too!)