Options:
1. Unrar/zip
2. Run bm.exe
3. Use in-game keys:
F1 - Infinite Lives
F2 - Infinite Time
F3 - Get Large Bat
F4 - Get G-Blaster
F5 - Anti Gravity
F6 - Level Skip
F7 - Unlock All Levels
F8 - Disable F1, F2, F5 + Get Normal Bat
download the file: bm-bb15trn7.zip
(to unpack archives use: WinZip,WinAce, WinRar)