Hetalia Vol 1 featuring the Axis Powers: Italy, Germany, and Japan with Switzerland and Liechtenstein
Hetalia Gacha Vol 2 featuring the Allies: America, England/Britain, France, China, and Russia
Hetalia Gacha Vol 3 featuring Spain, Romano, Austria, Hungary, Prussia, Greece, Turkey, Belgium, Poland, and Lithuania
Hetalia Gacha Vol 4 featuring Sweden, Finland, Ukraine, Belarus, Iceland, Norway, Denmark, Sealand, Netherlands, and Seychelles
Mostly Vol 2 through 4 are the only ones TinierME in USA has not received. It was only available in @games/atgames, which is JP TinierME.