| 101. | How I Got Into Disney Fandom and My Favorite Disney Character | 2 | |
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| 102. | Sparky Plays Genshin Impact 4th of July Special | 2 | | Genshin Impact
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| 103. | (Cover) DNCE - Toothbrush (Sparky Ver.) | 1 | |
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| 104. | 【Clip】Learn Russian with Sparky (Россия) - August 6, 2021 | 2 | |
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| 105. | Thank you, Everyone | 2 | |
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| 106. | (Cover) Taylor Swift - Today Was A Fairytale (Lost Constellation Ver.) | 4 | |
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| 107. | (Cover) Justin Timberlake - Can't Stop The Feeling (Lost Constellation Ver.) | 2 | |
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| 108. | 【My Duolingo Journey】Dutch - Episode 2 (100% Basics 2) | 2 | |
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| 109. | 【Speedrun】Duolingo Japanese (日本語) - Section 1 - 5 Crown (Revisited) | 2 | |
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| 110. | 【My Duolingo Journey】German - Episode 6 (100% Directions) | 2 | |
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| 111. | Let's Learn Japanese with Duolingo! Day -18 | 2 | |
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| 112. | From the Heart (Cover) | 4 | |
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| 113. | Monster (Cover) | 3 | |
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| 114. | 【My Duolingo Journey】Russian (Россия) - Episode 2 (100% Plurals) | 3 | |
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| 115. | (Cover) Colbie Caillat - Fallin' For You (Piano | Voice) | 4 | |
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| 116. | 【My Duolingo Journey】Russian (Россия) - Episode 6 (Genitive) | 3 | |
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| 117. | (Cover) Flo Rida - What a Night | 4 | |
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| 118. | 【My Duolingo Journey】Russian (Россия) - Episode 4 (100% Animals) | 3 | |
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| 119. | 【My Duolingo Journey】Dutch - Episode 4 (100% Negatives 1) | 3 | |
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| 120. | 【My Duolingo Journey】Russian (Россия) - Episode 1 (100% Phrases 2) | 4 | |
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| 121. | Japanese Concept of Minimalism, Hoarding, and Keeping up with the Joneses | 4 | |
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| 122. | 【My Duolingo Journey】Germany - Episode 1 (100% Family, 100% Basics 2) | 4 | |
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| 123. | 【My Duolingo Journey】Russian (Россия) - Episode 8 (100% Possessive) | 4 | |
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| 124. | Let's Learn German with Duolingo! - Basics 1 - 100% | 4 | |
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| 125. | 【My Duolingo Journey】Russian (Россия) - Episode 5 (Genitive) | 4 | |
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| 126. | (Cover) Maroon 5 - Beautiful Mistakes (Sparky Ver.) | 5 | |
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| 127. | 【My Duolingo Journey】Dutch - Episode 1 (100% Basics 1) | 5 | |
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| 128. | (Cover) Jason Mraz - I Feel Like Dancing | 5 | |
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| 129. | 【Clip】Learn Japanese with Sparky (日本語) - August 6, 2021 | 5 | |
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| 130. | (Cover) Sailor Moon DiC - Jennifer Cihi - My Only Love (Lost Constellation Ver.) | 6 | |
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| 131. | Sparky Senryu - Treacherous Desert (Epic Orchestral) | 5 | |
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| 132. | (Cover) Starset - Monster (Lost Constellation Ver.) | 5 | |
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| 133. | 【My Duolingo Journey】Russian (Россия) - Episode 7 (100% Genitive) | 5 | |
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| 134. | 【Clip】Learn Japanese with Sparky (日本語) - August 26, 2021 | 5 | |
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| 135. | (Cover) Cyndi Lauper - Time After Time (Lost Constellation Ver.) | 5 | |
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| 136. | Sparky Senryu - Great Wide World (Epic Orchestral) | 6 | |
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| 137. | (Cover) Amy Grant - I Will Be Your Friend (Lost Constellation Ver.) | 6 | |
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| 138. | (Cover) Taylor Swift - Today Was A Fairytale (Intimate Ver.) | 6 | |
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| 139. | Sparky Plays: Duolingo Japanese - Day 1 | 6 | |
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| 140. | (Cover) N*SYNC - God Must've Spent a Little More Time On You | 10 | |
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| 141. | Nana Asteria - Call Unto You (Senryu Remix) | 10 | |
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| 142. | (Cover) Starset - Monster (Lost Constellation Ver.) | 79 | |
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| 143. | Sparky Duolingo Japanese Speedrun - 100% Checkpoint 1 | 413 | |
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