| 1. |  Rooster Teeth | 7,165,983 | Let's Play - Mari0 Part 3 - With Geoff, Michael, Gavin, and Ryan | Rooster Teeth | 16:41 |
| 2. | dwangoAC, keeper of TASBot | 1,290,195 | What if we gave Mario a Portal gun then made a TAS? TASBot plays Mari0 at AGDQ 2019 | 22:51 |
| 3. |  EthGoesBOOM | 1,031,141 | BB PLAYS: MariO | 7:27 |
| 4. | Terrible Tommy | 229,079 | MARI0 PORTAL vs The World's Worst Gamer! | 7:42 |
| 5. |  Scyushi | 43,793 | Mari0rtal Multiplayer Ending! | 15:52 |
| 6. | ItsmeJamesAJ | 27,216 | Let's play Mari0: Super Mario Bros World 4 Epic Win! | 6:14 |
| 7. | Dice17 | 26,039 | Mari0: Portal (1.6) 2-1 2-2 2-3 2-4 Playthrough | 17:39 |
| 8. |  FireTight | 15,139 | Czech Let's Play - Mari0 - part 25 (final) | 27:35 |
| 9. |  Stavicom | 14,904 | SMB1 RIESEN-MARIO (mari0 AE) #supermariodeutsch | 0:23 |
| 10. |  Wolphegon | 11,412 | Game&Wolph - Mari0 [3] - Une histoire de lasers | 18:28 |
| 11. | Ratchetness Oldie | 7,972 | Mari0 Gameplay with Live Commentary Part 2: Deaths Galore(Facecam) | 11:29 |
| 12. | Wolverous | 6,486 | Let's Play: Mari0 | Folge #02 - Präzisionssprünge | 9:23 |
| 13. |  Mayro | 6,233 | Mari0 64 - Portal Mod "Tutorial" Stage ('Lil Playthrough!) | 5:35 |
| 14. | STANDASHOW | 5,657 | Mari0 - bonusová epizoda #3 | Multiplayer let's play | 17:26 |
| 15. |  tabletennisgamer | 5,163 | Let's Play Mari0 Part 6 - Das Ende | 19:35 |
| 16. | thenardsofdoom | 4,921 | Let's Play Super Mario - The Cookie Crisis episode 11: Portal Mario | 10:44 |
| 17. | DieHahn | 2,787 | Let's Play Mari0 Portal # 7 [Full-HD] Welt 2 wir kommen | 12:37 |
| 18. | StriHiryu | 2,653 | Let's Play Mari0 Part 1 - Banana Hat | 17:35 |
| 19. | Living Ichigo | 2,453 | Lets Play Mari0 (Living Ichigo Commentary) | 15:48 |
| 20. | Resonant Arc | 2,175 | Warialasky Plays Mari0 (Portal/Mario Mash Up) - Modern Thursday | 7:38 |
| 21. | JimPlaysGames | 1,500 | Mari0 - Part 2 (Portal with Mario) - Pseudo Retro | 10:21 |
| 22. | The Basement | 1,204 | The Mario Portal crossover - Mari0! Ted plays this one solo, however "playing mari0" is generous. | 15:21 |
| 23. | Zockerstu | 942 | Let's play Mari0 (Deutsch) Teil 5 - große Welt, kleines Hirn | 23:20 |
| 24. | CyanPHD | 641 | IT'S A ME! A-GLADOS! | Mari0 Bite-Sized Let's Play! | 8:29 |
| 25. | Box King Kevin | 607 | Let's Play: Mari0 - Part 8 That ending though o.O | 13:22 |
| 26. | MrRayhonda | 570 | Let's Play Mari0 | PORTAL MARIO GAME?! | 11:00 |
| 27. | CoinOp Gaming | 496 | Let's Play Mari0: Solo Portal Levels Part 2 | 11:50 |
| 28. | MrProMilkyBarKid | 274 | Mari0 Let's Play Episode 1: This game is fricken awesome | 5:06 |
| 29. | Radfordhound | 216 | (HD) Let's Play Mari0 /w PinkGirl10101! (Mario+Portal Fan Game) | 42:26 |
| 30. | Valkenhyne | 159 | Mari0 (Portals in Mario) Episode 1 - So begins the Random Shenanigans Playthrough | 14:47 |
| 31. | BioGameChannel | 157 | Bio Plays: Mari0 - 10 Minute Edition | 10:31 |
| 32. | Co-Play | 134 | Let's Play Mari0! | 18:36 |
| 33. | tohelot | 126 | Mari0 - 1 - 1 Level Playthrough | 2:05 |
| 34. | TheAmazingKent | 116 | Lets Play mari0 w/ TheAmazingKent! Episode 1: Introductions! | 15:41 |
| 35. | Ryason55 | 113 | Let's Play: Mari0 - 01 - Portal Shananigans | 54:43 |
| 36. | Mossi | 99 | MARI0 [GER] 🎮 Escape the Lab 🎮 Let's Play Mari0 | 28:09 |
| 37. | JsquaredLetsPlay | 96 | Let's Play Mari0: Science and Stuff DLC | 10:19 |
| 38. | Rob Flynn (Wolverous) | 84 | Mari0 | 1:03:43 |
| 39. | Lord Rohlík | 81 | Let's Play na přání - S01E01 - Mari0 | 6:55 |
| 40. | The ACDSdudes | 72 | Melvin Plays Mari0 | 9:51 |
| 41. | FreakyGeekyStudios | 57 | Lets Play: mari0: Acid and Portals don't mix | 10:14 |
| 42. | Terasoft Gaming | 52 | Vpx Gaming Industries plays Indie games: Portal Mario | 7:15 |
| 43. | FELOW | 43 | Let's Play MARI0 - Part 8: Wichtige Informationen für aktive Zuschauer [ENDE] | 18:43 |
| 44. | Rilcaz | 40 | TheRilcaz Plays - Mari0 : Portal, with more style! | 6:12 |
| 45. | DerLazorbeamLP2 | 40 | 10 ABO Spezial 1. Lets Show: Lets Show Mari0: "Portalig" | 10:27 |
| 46. | Bustopher | 36 | PORTAL AND MARIO? Mari0 Let's play | 15:31 |
| 47. | LegendBegins | 29 | Let's Play Mari0 [1] | 18:39 |
| 48. | GamerToons | 25 | My Kid plays Mari0 Episode 1 | 26:21 |
| 49. | iiVoltageWolf | 10 | iiVoltageWolf Plays - Mari0 | 8:45 |
| 50. | CraneCD | 9 | Mari0 Playthrough w/ Crane: Ep. 9 I Hate Hammers | 9:35 |
