| 1. | Undertale and FNAF React to SMG4: Mario Goes to the Fridge to Get a Glass Of Milk | 634,547 | | Undertale
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| 2. | Undertale reacts to The First 300 SCPs in 10 words or less | 516,342 | | Undertale
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| 3. | Undertale reacts to SMG4: Mario vs IT 🤡 | 493,410 | | Undertale
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| 4. | Undertale Reacts to R64: Mario's Boat Trip | 340,540 | | Undertale
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| 5. | Undertale Reacts to SMG4: The Weegee Uprising | 256,639 | | Undertale
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| 6. | FNAF and Undertale reacts to SMG4: SSENMODNAR - 3,826,412 SUB SPECIAL | 241,265 | | Undertale
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| 7. | Undertale Reacts to SMG4: Mario Battle Royale | 236,884 | | Undertale
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| 8. | Undertale reacts to SMG4: If Mario Was In.... SQUID GAME | 199,002 | | Undertale
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| 9. | Undertale Reacts to SMG4: Mario Gladiators | 129,806 | | Undertale
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| 10. | Undertale Reacts to SMG4: Mario Babies | 66,211 | | Undertale
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| 11. | UNDERTALE reacts too: POOTIS ENGAGE | 57,289 | | Undertale
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| 12. | Undertale reacts to "Mario Reacts To Nintendo Memes 3" | 56,763 | | Undertale
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| 13. | UNDERTALE reacts to: Pootis Engage // EXTREME | 53,173 | | Undertale
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| 14. | Undertale reacts to: The Mario Channel: MARIO'S CHALLENGE | 49,602 | | Undertale
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| 15. | Undertale reacts to SMG4 Christmas 2019: Mario Alone | 46,158 | | Undertale
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| 16. | Undertale reacts to SMG4: Mario and the VILLAGE | 33,106 | | Undertale
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| 17. | Undertale Reacts to: Around The Clock At Bikini Bottom (3451 Anchor Way and Patrick's Rock[10PM]) | 28,723 | | Undertale
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| 18. | Undertale Reacts to: Around The Clock At Bikini Bottom (Glove World [9PM]) | 22,351 | | Undertale
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| 19. | Undertale reacts to: Around The Clock At Bikini Bottom (part 3) | 17,311 | | Undertale
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| 20. | Undertale Reacts to: Around The Clock At Bikini Bottom(Tentacle Acres)[11PM] | 13,581 | | Undertale
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| 21. | Undertale reacts to TS!UNDERSWAP Asgore fight (Pacifist/Genocide) | 12,975 | | Undertale
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| 22. | Undertale reacts to "SMG4: The Melony Felony" | 12,495 | | Undertale
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| 23. | Undertale ans Deltarune react to The Soldier Guide by Dr.Lalve (also the end of an era) | 5,776 | Guide | Undertale
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| 24. | Undertale Reacts to: Around The Clock At Bikini Bottom (Mrs. Puff's Boating School) | 3,426 | | Undertale
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| 25. | Disbelief Papyrus (Mobile Version) |Undertale: Disbelief| | 2,949 | | Undertale
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| 26. | DustVan: The New Genocider /Dust Tim fight (Phase1)[Animation] | 2,843 | | Undertale
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| 27. | Dust Tim Fight / DustVan: The New Genocider (Phase 2)[Animation] | 2,430 | | Undertale
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| 28. | Disbelief Papyrus Fight PART 2 | 2,110 | | Undertale
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