You can download Bat Bat below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2397086842
You can download Mettaton EX Boss Fight below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2459912438
You can buy Rivals of Aether below.
https://store.steampowered.com/app/383980/Rivals_of_Aether/
...
https://www.youtube.com/watch?v=33A7AEJ_s6g
You can download the song below.
https://www.youtube.com/watch?v=t2IPNMatylQ
You can buy Beat Hazard 2 below.
https://store.steampowered.com/app/618740/Beat_Hazard_2/
...
https://www.youtube.com/watch?v=_YNYGg6TBw8
You can download TOTK Link below.
https://steamcommunity.com/workshop/filedetails/?id=3013370785
You can download Super Mario Bros. W1 below.
https://steamcommunity.com/workshop/filedetails/?id=2787758723
You can buy Rivals of Aether below.
https://store.steampowered.com/app/383980
...
https://www.youtube.com/watch?v=Y75jcwBmzno
You can download The Collector below.
https://steamcommunity.com/sharedfiles/filedetails/?id=3006912885
You can download SSL Galleom below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2622060093
You can download SSL The Ruined Hall below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2622062402
You can buy Rivals of Aether below.
https://store.steampowered.com/app/383980
...
https://www.youtube.com/watch?v=R0_z0X1_BDQ
You can download Owen below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2144710708
You can download Boss!Mayu below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2219755812
You can download Infinity Dojo below.
https://steamcommunity.com/sharedfiles/filedetails/?id=1952714300
You can buy Rivals of Aether below.
https://store.steampowered.com/app/383980/Rivals_of_Aether/
...
https://www.youtube.com/watch?v=sie-mBtMOXo
Felt cool to do but this was supposed to be a no-death run so I'm not sure why I did that.
You can download Minun & Plusle below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2502590772
You can download Abyss Hime below.
https://steamcommunity.com/sharedfiles/filedetails/?id=1968648848
You can buy Rivals of Aether below.
https://store.steampowered.com/app/383980/Rivals_of_Aether/
...
https://www.youtube.com/watch?v=KgOHwCqSkHs
You can download Mystia Lorelei below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2350985664
You can download Boss!Vergil below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2520860580
You can download Temen-Ni-Gru below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2701850982
You can buy Rivals of Aether below.
https://store.steampowered.com/app/383980/Rivals_of_Aether/
...
https://www.youtube.com/watch?v=DLOvvUsAvCI
You can download the campaign below but it might not be the version I had so maybe it's better?
https://steamcommunity.com/sharedfiles/filedetails/?id=2927240371
You can download Heather Mason as a replacement for Rochelle or Zoey below.
Rochelle: https://steamcommunity.com/sharedfiles/filedetails/?id=170693415
Zoey: https://steamcommunity.com/sharedfiles/filedetails/?id=898858201
You can buy Left 4 Dead 2 below.
https://store.steampowered.com/app/550/Left_4_Dead_2/
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https://www.youtube.com/watch?v=Iky0EW9rB2w