Make sure your game is patched to v1.04 before installing the mod. Compatibility: Run both the game and the trainer as Administrator.
Even with a trainer, use the Emulator's Save State feature (Shift + F1). The trainer prevents cheap deaths, but some ROM hacks have soft-locks (areas where you get stuck in the geometry). Save states protect your progress. contra 009 trainer
A unique trainer that maps all weapons to the D-Pad. Make sure your game is patched to v1