Battle Arenas are survival challenges reached from crown pads. Stay alive until the displayed timer finishes; defeating every enemy is unnecessary. Instrument attacks clear space, but do not spend the final seconds chasing enemies near the edge. Four crowns open the first door to Helm’s key vault; all ten are needed for the full collection.
DK Isles — two crowns
Near Snide, have Chunky lift the boulder to uncover the first pad. For the second, visit Fungi Forest’s lobby and shoot the mushroom switches in this order: Diddy, Donkey Kong, Lanky, Chunky, Tiny. Use Gorilla Gone as Chunky to reveal the crown pad.
Jungle Japes
Look immediately in front of Funky’s Armory. Reach the pad from the nearby ledge and survive the arena.
Angry Aztec
Enter Tiny’s temple as Lanky and complete the buzzard shooting task that drains the pool. The crown pad is accessible in the drained temple area.
Frantic Factory
Use Gorilla Grab on the lever in DK’s Research and Development room. The revealed floor area contains the crown pad.
Gloomy Galleon
Use Chunky to open the gate below Cranky’s Lab. Follow the passage to the arena pad.
Fungi Forest
Switch the world to night and climb the giant mushroom’s exterior. The pad is on an outer ledge that is blocked during the day.
Crystal Caves
Clear DK’s rotating memory-puzzle cabin. Press the grey switch to reveal the pad and enter the arena before leaving the room.
Creepy Castle
Complete Lanky’s greenhouse maze and return inside. The crown pad becomes available after the Golden Banana challenge.
Hideout Helm
After disabling the machine, use Diddy’s Rocketbarrel to reach the pad above the Blast-o-Matic. This arena lasts ninety seconds, so conserve health and avoid unnecessary risks.