| 1. |  Rooster Teeth | Let's Play - Mari0 - With Geoff, Gavin, Michael, and Ryan | Rooster Teeth | 9,695 | Let's Play |
| 2. | CaptainSparklez | Let's Play Mari0: Super Mario Meets Portal - Part 1 | 3,990 | |
| 3. | Rooster Teeth | Let's Play - Mari0 Part 2 - With Geoff, Michael, Gavin, and Ryan | Rooster Teeth | 3,296 | Let's Play |
| 4. | Markiplier | Mari0 | 2,516 | |
| 5. | Blue Television Games | Him! Run from Cursed Goomba (Jumpscare Mari0 Map Pack) | 1,949 | |
| 6. | Rooster Teeth | Let's Play - Mari0 Part 3 - With Geoff, Michael, Gavin, and Ryan | Rooster Teeth | 1,886 | Let's Play |
| 7. |  Enes Batur S | MARİO+PORTAL!! - Mari0 Kardeşimle | 1,822 | |
| 8. | CaptainSparklez | Let's Play Mari0: Friggin' Lazers - Part 4 | 1,581 | |
| 9. | Blue Television Games | Most Hilarious Mari0 Map Pack EVER! (Diagonal Mario, Cursed Goomba, Memes, & MORE!) | 1,517 | |
| 10. | dwangoAC, keeper of TASBot | What if we gave Mario a Portal gun then made a TAS? TASBot plays Mari0 at AGDQ 2019 | 1,477 | Let's Play |
| 11. | CaptainSparklez | Let's Play Mari0: Rage Crash - Part 2 | 1,378 | |
| 12. |  OfficialNerdCubed | Nerd³'s Three Free Games Friday - 3 | 1,333 | |
| 13. | Blue Television Games | There's a Cursed Goomba in my House?! (Mari0 Nightmare Mode) | 1,300 | |
| 14. | CaptainSparklez | Let's Play Mari0: I Call Hax - Part 3 | 1,298 | |
| 15. | Blue Television Games | Play as Cursed Goomba! (Hilarious Mari0 Character Pack) | 1,014 | |
| 16. |  Pepe el Mago Juega | NO SE SI ESTE .EXE DE MARIO DA MIEDO O RISA... - Mari0.EXE con Pepe el Mago | 1,000 | |
| 17. | ChimneySwift11 | Mari0 w/ Chim | Mario Meets Portal | (HD) | 991 | |
| 18. | Blue Television Games | Super Mario Bros. but with 1,000,000 Goombas! [Mari0] | 980 | |
| 19. | Terrible Tommy | MARI0 PORTAL vs The World's Worst Gamer! | 973 | Let's Play |
| 20. | Blue Television Games | THEM! Run from Cursed GOOMBAS in Him 2!! (Jumpscare Mari0 Map Pack) | 836 | |
| 21. |  Андрей Нифедов | Mario Portal с Нифёдовым | 792 | |
| 22. | Blue Television Games | Super Shrek Bros.! - Mari0 Map Pack (Mario Portal) | 757 | |
| 23. | Blue Television Games | Mario, but he's on FIRE?! (+ other funny Mari0 characters) | 679 | |
| 24. | Blue Television Games | Toad's Ship Sank! Mario & His Goomba Friend Must Save the Day! (Mari0) | 674 | |
| 25. | Pepe el Mago Juega | ESTE MOD DE MARIO ES UNA LOCURA, Y ME ENCANTA !! - Mari0 con Pepe el Mago (#1) | 629 | |
| 26. |  EthGoesBOOM | BB PLAYS: MariO | 586 | Let's Play |
| 27. | Blue Television Games | Him 3: “YOU” Run From Cursed Goomba! (Jumpscare Mari0 Map Pack) | 581 | |
| 28. | Blue Television Games | BUFF HIM?! CURSED GOOMBA FINAL GAME!!! (Jumpscare Mari0 Map Pack) | 561 | |
| 29. |  Coisa de Nerd | Live #02 (parte 1) - Mari0 (Mario + Portal). | 553 | |
| 30. | ViteC ► Play | МАРИО + ПОРТАЛ = ? ► Portal Mario | 553 | |
| 31. |  Domtendo | MARIO KART Wii 🏍️ #35: Wii U Gerüchte & Donkey Kong 3D Fake & Mari0 | 530 | |
| 32. | Blue Television Games | Super Shrek Bros. - Episode 2! - Mari0 Map Pack | 494 | Show |
| 33. | Kaze Emanuar | Mari0 64 (Minihack) Release Trailer | 485 | |
| 34. | Blue Television Games | Super THICC Mario Bros ?! - Hilarious Mari0 Character Pack | 485 | |
| 35. | Blue Television Games | Super Mario Bros Reimagined! Episode 2 (Mari0) | 462 | Show |
| 36. | yamimash | Mario with Portal Guns - Mari0 | 450 | |
| 37. | Blue Television Games | Among Us Impostor in Super Mario Bros., but it's Halloween! (Mari0) | 444 | |
| 38. | yamimash | Mari0 | Most Epic Death Ever? | 406 | |
| 39. | IGN | Portal Mari0 Game Demo - By Stabyourself.net | 406 | |
| 40. | Blue Television Games | Mari0 Christmas Map Pack - Cursed Goomba & Shrek Save Christmas?! | 394 | |
| 41. | Pepe el Mago Juega | SUPER MARIO BROS CON VIAJES EN EL TIEMPO !! - Mari0 Worped con Pepe el Mago | 371 | |
| 42. | Pepe el Mago Juega | SUPER MARIO BROS 1 PERO EL PISO ES LAVA !! - Mari0 Floor is Lava con Pepe el Mago (#1) | 338 | |
| 43. | Blue Television Games | Go0mba! A Sacrifice Has to be Made!! | 332 | |
| 44. | Blue Television Games | 16-Bit Mario Attacks 8-Bit Mario?! (Mari0) | 313 | |
| 45. |  Deîak | FONTANERO ABRIENDO PORTALES | Mari0 | 308 | |
| 46. |  Luigikid Gaming | LUIGIKID REACTS TO: PORTAL M4R10 - IF MARIO WAS IN...PORTAL by SMG4 | 305 | |
| 47. |  NiKyBoX | Super Mario + Portal 2 = MARI0! | by TSG | 297 | |
| 48. |  skkf | RetroGranie: Mari0, czyli mario + portal | 291 | |
| 49. | Blue Television Games | Bowser's Return! (Mari0) | 288 | |
| 50. | Blue Television Games | Super Grumbo Bros.! (Mari0) | 286 | |
| 51. | Pepe el Mago Juega | ESTE GOOMBA DEMONIACO VIENE POR MI... - Him (Mod de Terror de Mari0) con Pepe el Mago | 282 | |
| 52. | Blue Television Games | Super Mario Portal CHEATS!!! - Mari0 | 281 | |
| 53. | Zombey | Let's Play Mari0 #01 - Rein & Raus, tot. | 258 | |
| 54. | Pepe el Mago Juega | EL GOOMBA DEMON ME VA A VOLVER LOCO !! - You (Mod de Terror de Mari0) con Pepe el Mago | 234 | |
| 55. | Hobo Bros | SUPER MARIO PORTAL?! || Mari0 | 230 | |
| 56. | Pepe el Mago Juega | EL GOOMBA DEMON ESTÁ DE REGRESO... - Them (Mod de Terror de Mari0) con Pepe el Mago | 228 | |
| 57. | Pepe el Mago Juega | TAN CERCA PERO A LA VEZ TAN LEJOS... - Mari0 Floor is Lava con Pepe el Mago (FINAL) | 211 | |
| 58. | Games Done Quick | TASBOT Plays mari0 (SMB1 + Portal Gun) presented by DwangoAC - AGDQ2019 | 208 | |
| 59. | Blue Television Games | Luigi RPG Made in Mari0 - Puzzles, Battles, and Platforming | 194 | |
| 60. | Prince Charming | MARIO GANGBANG?! | SMG4: If Mario was in Portal Reaction! | 189 | |
| 61. | Northernlion | Let's Look At - Mari0 [PC - Free] | 174 | |
| 62. | agunZagun | Mari0 Oynuyorum Gibi - Kaplumbağanın Üstündeki Mantar - Bölüm 1 | 151 | |
| 63. | Luigikid Gaming | MARIO.EXE ONE MORE TIME | 132 | |
| 64. | Pepe el Mago Juega | UN LUIGI DEMONÍACO ME PERSIGUE !! - Mario PC Port Remastered (Mari0) con Pepe el Mago | 129 | |
| 65. |  MB3R | Ba chàng ngốc đi cứu công chúa | Mari0 (Mario portal) | 128 | |
| 66. | CavemanFilms | Caveman Plays - Mari0 - Portal/Mario Crossover | 127 | |
| 67. | Daz | SUPER PORTAL BROS | 120 | |
| 68. | Zombey | Let's Play Mari0 #04 - Schummeln wie gewohnt! | 117 | |
| 69. | Luigikid Gaming | Mari0.EXE - HE KILLED LUIGI AND PEACH! (Scary Mario Horror Game) | 112 | |
| 70. | Zombey | Let's Play Mari0 #02 - Wie man nicht mit Portalen umgeht. | 108 | |
| 71. |  PabloGamer20 | EL MEJOR JUEGO DE MARIO BROS QUE HE VISTO!!!!!!!(Mari0)-(Gameplay en español) | 98 | |
| 72. | yamimash | Mario + Portal = This Game! | 83 | |
| 73. | TASVideosChannel | TAS Block at AGDQ 2019 - TASBot | 83 | |
| 74. | Zombey | Let's Play Mari0 #03 - Sterben auch ohne Portale | 82 | |
| 75. |  Scyushi | Mari0 Multiplayer Madness! | 80 | |
| 76. | Bob-Omb Bey | Süper Mari0 (Işınlanmalı) [TÜRKÇE oynanış] | 78 | |
| 77. | sophycz | Mari0 [Sophy.cz] | 77 | |
| 78. | agunZagun | Mari0 Oynuyorum Gibi - 7 Canı Anında Kaybetmek - Bölüm 2 | 76 | |
| 79. | Eu Faria Vídeos | Mari0 - MARIO + PORTAL?? | 75 | |
| 80. | Patterrz | How Not to Play Mari0 | 70 | |
| 81. | Kybernauts | Let's Look - Mari0 | 68 | |
| 82. | WhatZachDoes | The Joy Of Random Gaming - Mari0 | 65 | |
| 83. | DidaIbr | Mari0 Co-op 4 Player Gameplay | 65 | |
| 84. | Naka Teleeli | Easter vacation game 1/4 - Mari0 | 64 | |
| 85. | Lair | Player 2 Restarts the Level | 62 | |
| 86. | rechyyy | Mari0 - Portal meets Super Mario | 59 | |
| 87. | The Basement | The Mario Portal crossover - Mari0! Ted plays this one solo, however "playing mari0" is generous. | 59 | Let's Play |
| 88. | Mayro | Mari0 64 - Portal Mod "Tutorial" Stage ('Lil Playthrough!) | 58 | Let's Play |
| 89. |  NAR7RRAG | N7 Plays: Mari0 [Arabic] - نارحراق يلعب: ماريو بورتال | 58 | |
| 90. | Master0fHyrule | Mari0 Co-op - Now You're Thinking With Portals - Super Mario Bros: Episode 1 | 57 | |
| 91. | Ranger the Warrior | Messing With the Laws of Physics in Mario | 51 | |
| 92. |  tabletennisgamer | Let's Play Mari0 Part 1 - Mario, der Mann mit der Portalgun | 51 | |
| 93. | ReindMax | как открыть читы в Mari0 Portal | 49 | |
| 94. |  menameselassie | MariO Portal ! | let´s play + facecam | SK | Selassie a Lála - čaro portálov | 48 | |
| 95. | agunZagun | Mari0 Oynuyorum Gibi - Bu İşi Biliyorum Yua! - Bölüm 3 | 46 | |
| 96. | Bir Level Atladı | Oruçluyken Mari0 Keyfi - #6 [SON] Son Kez?.. | 45 | |
| 97. | LiNX 4 | Mari0.EXE!! He's Deadlier With A Portal Gun... | 41 | |
| 98. | Raicuparta | Mari0 Beta - Level Editor | 40 | |
| 99. | LazySuperstar | SUPER MARIO BROS pero soy SANS | 40 | |
| 100. | tabletennisgamer | Let's Play Mari0 Part 2 - Die wahren Portal Level | 39 | |
