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