No "No Gravity" Cheat for GTA: Vice City Stories (PSP)

No official or reliable cheat/mod exists for zero gravity in VCS PSP.

Why It Doesn't Exist

• Engine limitations: RenderWare on PSP lacks gravity scalar exposure to cheat system.
• Mod scene limitations: PSP modding is limited to texture swaps, simple value edits — not physics overhauls.
• Stability: Physics hacks crash the game or corrupt saves.

Closest Alternatives

• Moon gravity cheat (PC/PS2 only): Not ported to PSP.
• Helicopter/jetpack codes: Give flight illusion but not true zero-G.
• PPSSPP emulator + CWCheat: Some memory hacks alter jump height/fall speed — unstable.

Safe Modding Practices

• Backup saves before any cheat/mod attempt.
• Use only trusted sources (GTAForums, NexusMods).
• Prefer PPSSPP on PC for experimentation — savestates protect progress.

For true physics sandbox, try Garry's Mod or BeamNG.drive on PC.