Hideout Helm

Hideout Helm is the eighth and final world in Donkey Kong 64. The goal is to shut down K. Rool's Blast-o-Matic before it destroys Donkey Kong Island. The amount of time players have to complete the stage depends on how many blueprints Snide receives from the Kongs; the player is given ten minutes automatically, plus one minute for each blueprint retrieved, for a total of up to 50 minutes.

If the player fails to complete the stage before time is up, Donkey Kong Island would be blown up by the Blast-o-Matic, causing Game Over. After completing the several Kong-based challenges, the timer will end with the Blast-o-Matic turned off. The player will then need to have collected 4 Battle Crowns, finished Cranky's Jetpac, and Frantic Factory's Donkey Kong arcade minigames in order to reach the room with the final K. Lumsy key.

Donkey Kong's

 * Left Barrel: Jump into the Barrel Cannon and shoot Donkey Kong into three of the four targets.
 * Right Barrel: As Rambi, defeat 18 Kritters while avoiding the electrical pylons.

Chunky Kong's

 * Left Barrel: As Hunky Chunky, break open the large crates with the Primape Punch until finding a lone Kritter, then defeat him.
 * Right Barrel: From the podium, use the sniper scope and shoot the five Kritters at the far end of the room. This challenge is easier if having some homing ammo since the Kritters are somewhat fast and tend to change direction suddenly.

Tiny Kong's

 * Left Barrel: Fly through all three DK stars using the Ponytail Twirl without touching the floor and step on the grey switch at the end.
 * Right Barrel: Bounce off the mushrooms and Ponytail Twirl through all three DK stars.

Lanky Kong's

 * Left Barrel: Using the Orang-Sprint, step on the switch hidden in the maze, then cross the finish line. Avoid the enemies as they'll slow Lanky down.
 * Right Barrel: Shoot down three Mecha-Zingers; each one requires three hits to defeat. This challenge is easier if having some homing ammo since the Zingers move fast.

Diddy Kong's

 * Left Barrel: Defeat the Kritters until defeating the one that actives the switch in the center of the room (a chime can be hear when doing so), then press the switch.
 * Right Barrel: Using the Rocketbarrel Boost, shoot each of the four switches along the walls to lift the cage blocking the switch, then press the swtich. There are also four Koshas in the room, but they have nothing to do with the objective.

Enemies in Hideout Helm

 * Kritter
 * Klaptrap
 * Klump
 * Mecha-Zinger (Bonus Level only)
 * Kosha (Bonus Level only)
 * Kasplat (Battle Arena only)

Trivia

 * Strangely, in the bridge, there is a monitor with an image of the moon displayed on its screen. What the Kremlings planned on doing to it is unknown.
 * This is the only stage in Donkey Kong 64 in which a Kasplat doesn't appear (excluding its minor appearance in the Battle Arena).
 * This is also the only stage in which Wrinkly Doors, Cranky's Lab, Funky's Armory, Candy's Music Shop, and Snide's HQ are not present.
 * There are no Golden Bananas in this world.
 * This is the only world in which the Kongs can get a Banana Medal without collecting any Bananas.