Here is the full list of all 35 Half Minute Hero: Super Mega Neo Climax Ultimate Boy achievements.
Defeat Larrie and beat Level 4 in 27 seconds or less.
Beat Classic Knight 30
Beat the first five levels of Classic Knight 30
Cleared Hero 300.
Beat Classic Princess 30
Beat the first five levels of Classic Princess 30
Beat Classic Evil Lord 30
Beat the first five levels of Classic Evil Lord 30
Got all available equipment in single player mode.
Reached every ending in Hero 30.
Cleared Hero 30.
Beat Hero 30 without using herbs to heal.
Defeat any five Evil Lords with one hit.
Cleared "Cursed Hero" without defeating Sasha.
Allied with all available NPCs.
Play a multiplayer match with a friend
Play a multiplayer match with 3 other friends.
Defeat any three Evil Lords wearing no equipment.
Win a multiplayer match.
Play online multiplayer.
Beat the first 9 levels of Hero 30.
Offered a total of 3000G to the Goddess in a quest in single player mode.
Eat 10 types of food.
Get a companion to join you.
Obtain Barrel Armor and Barrel Head
Ride a ship.
Prayed to the Goddess for the first time in single player mode.
Record a time on the leaderboards.
Became 30 times the True Hero in multiplayer mode.
Cleared Hero 300 in Hard Mode.
Cleared Hero 3.
Received every title.
Beat every level under the target time.
Beat the final boss of Hero 30 using the Wood Sword as a weapon.
Get all achievements in the game.