Patapon Remastered

This trophy is self-explanatory, you need to use all unit types at least once in a mission (this is cumulative across all missions, you don't have to use all unit types in the same one). You might unlock it naturally if you're a little curious and want to try out new classes as you unlock them, but if you haven't here's a recap with their respective weapons, the materials needed to create them and the story mission where you get them:
 

Name	Weapon(s)	Materials	Story Mission
Hatapon	Flag-bearer, not a fighting unit	Cannot be created	Prologue
Yaripon	Spear	Meat + Wood	Prologue
Tatepon	Sword/Axe and Shield	Meat + Stone	2 - Escape from Exile
Yumipon	Bow	Wood + Stone	4 - Crack the Zigoton Fort
Kibapon	Horse and Halberd	Stone + Stone	10 - Desert Behemoth
Dekapon	Club/Mace/Bat/Hammer	Alloy + Meat	20 - Lord of the Mountains
Megapon	Horn	Alloy + Wood	26 - Volcano Guardian

You obviously can't use all unit types in the same mission at once, so the trophy will unlock when you are back to Patapolis after clearing a story or hunting mission in which you have used the last of previously unused unit type(s).