A conventional cheat is a cheat that is valid in-game, and can be triggered unconditionally by pressing the appropriate keys simultaneously. These cheats work in all versions of their respective releases.
|N + E + X + T||Level warp (prompts for level number)|
|X + T + R + A||Set ammo to 30, if it is less than 30|
|Z + E + U + S||Invincibility, allows G to be pressed to reverse gravity|