Low rider trucks:
Enter YRDR as a password.

Full time missiles:
Enter Y_WNT_T as a password to have unlimited missiles. Note: "_" indicates a space. To use the missiles, press Left during game play.

Gut bomb:
Enter BRPS as a password.

Turbo mode:
Enter CFFNYN as a password.

Programmer images:
Enter JMPNG as a password to place a picture of one of the game's programmers on various surfaces.

Weird mode:
Enter JMPR as a password. Select "Done" and "JIM" will appear in the square. Press Start, select "New Game", then choose "Summit Rumble". Select any number of players, but many CPU trucks. When game play begins, there should be black squares with aliens or other objects in the middle.

Aztec Valley track:
Successfully complete a circuit under the easy difficulty setting.

Alpine Challenge track:
Successfully complete a circuit under the medium difficulty setting.

Death Trap track:
Successfully complete a circuit under the hard difficulty setting.

Horn:
Press Down to use the horn. Note: There are many different type of horns that are randomly assigned at the beginning of a race.

Sound effects:
Press Up to hear "Yahoos", burps, and farts.

Hint: Runes hiding places:
Go to the corner of the second highest level of the gray tower. There is a hole on the side near the Hover that can be used to hide in. If two monster trucks are placed in the hole, one will go flying out. Drive on the road where Nitro and Hover are located. A small building will come into view after the jump. Use Hover or Diamond Invisibility to enter the building.

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