Don Drum can only be obtained in the level Patapon 3, which is unlocked after beating the boss in Patapon 2.
Step 2: Find the Don Drum Area
Once you're in Patapon 3, you need to find the area where the Don Drum is located. It's a hidden area, so it's not marked on the map. To find it, follow these steps:
1. Start from the beginning of the level.
2. Head right until you reach a fork in the path.
3. Take the upper path and continue right until you reach a dead end.
4. Use your PonPata song to break the wall at the end of the dead end.
5. Enter the secret area and you will find the Don Drum.
Step 3: Fight the Don Drum Boss
Once you enter the secret area, you will be challenged by the Don Drum boss. This is a tough fight, so make sure you're prepared. The Don Drum has a number of powerful attacks, so you'll need to be able to dodge and block effectively. You should also bring along a healer, as the Don Drum can do a lot of damage.
Step 4: Defeat the Boss and Get the Don Drum
After you defeat the Don Drum boss, you will be rewarded with the Don Drum. This is a powerful drum that can be used to summon powerful allies. Equip the Don Drum to one of your Patapons and start using it in battle!