Index: Infinite ammo Infinite energy Level select Stage passwords  Infinite ammo At the main menu, press Circle(4), L1, Circle, L1(2), Circle, L1(2), Circle, L1(4). You must be a registered member (free) to rate the status of this cheat.  Infinite energy At the main menu, press Circle, L1(3), Circle, L1, Circle(2), L1, Circle(3), L1(5), Circle(2), L1. You must be a registered member (free) to rate the status of this cheat.  Level select At the main menu, press L1, Circle, L1(3), Circle(4), L1(2), Circle(2), L1, Circle, L1, Circle(4). Then, press R1 or R2 to select a level. You must be a registered member (free) to rate the status of this cheat.  Stage passwords Stage Easy Normal Hard 1-2 Q58NM LDZCQ 4HWGE 1-3 TDM75 UH8OT X06BE 1-4 VO1PP JCP6V H4ULJ 2-1 0F20F 0HX8Y OE95W 2-2 42W3T JGK-P 5K5H7 2-3 VR4T2 6EZD5 SHCMM 2-4 1NBCX CXVI6 PA3K1 2-5 ZF0XD Y5KXJ Q2NGZ 3-1 2XVSD AHO3J S2MF- 3-2 W0J8H 3Y8-D -7FRU 3-3 THYDH 0MZDU 3CZFK 3-4 1SOJ3 130BP V2MW8 4-1 YCTS6 PUUKS 28SD1 4-2 Q29LH UDUY4 21FSD 4-3 WS7Y6 HQPIW BOFGK 4-4 2RHK4 RB9RU Z1IT2 End UP405 C42R1 2MP3P Game Shark Codes Infinite Missiles 800C2178 0064 Infinite Energy 800BF660 00FD Infinite Flame Thrower 800C2174 00FA Infinite Grenades 800C2184 000A Infinite Disruptor 800C2188 0064 Infinite Homing Missiles 800C217C 0064 Infinite Io-Storm 800C218C 0064 Infinite Photons 800C2180 0064 You must be a registered member (free) to rate the status of this cheat. Game page for Machine Head