You can download Amaya below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2593144115
You can download King Bowser below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2037682193
You can download Bowser's Castle below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2509816206
You can buy Rivals of Aether below.
https://store.steampowered.com/app/383980/Rivals_of_Aether/r/
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https://www.youtube.com/watch?v=_r94kppk4t4
You can buy the track or the whole album below.
https://www.youtube.com/watch?v=FGknHojgdpY
You can buy Undertale below.
https://store.steampowered.com/app/391540/Undertale/
You can buy Beat Hazard 2 below.
https://store.steampowered.com/app/618740/Beat_Hazard_2/
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https://www.youtube.com/watch?v=WiLFBEkNvfM
Now, I know why I didn't do this before. Also, god I forgot how unresponsive & rebellious this game's controls are. Maybe I should go back to never playing it.
The version of Mayu I use was made by 586 & can be found below.
https://mugenarchive.com/forums/downloads.php?do=file&id=21044-mayu-shiina-586
Kyouki was made by Tokage & can be found below.
https://mugenarchive.com/forums/downloads.php?do=file&id=21205-kyouki-tokage
The Attic was made by Andres Borghi & can be found below.
https://mugenarchive.com/forums/downloads.php?do=file&id=7909-the-attic-andres-borghi
I don't know where to get the version of Mugen I used for this video since someone gave it to me.
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https://www.youtube.com/watch?v=7sha3xxf4Ao
You can download the song below.
https://soundcloud.com/madame-macabre
You can buy Beat Hazard 2 below.
https://store.steampowered.com/app/618740/Beat_Hazard_2/
...
https://www.youtube.com/watch?v=f-gfWJHuJhs
Doing this deahtless is even harder now than it would've been if I'd done it in the old video because Lucy was super overpowered back then but has been heavily nerfed since.
You can download Lucy below.
https://steamcommunity.com/workshop/filedetails/?id=2694422762
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=YWP_dDWlLYY
You can download Toadette below.
https://steamcommunity.com/sharedfiles/filedetails/?id=3148524652
You can download A-Bomb below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2988519261
You can download Ruined Street below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2243476510
You can buy Rivals of Aether below.
https://store.steampowered.com/app/383980
...
https://www.youtube.com/watch?v=uiEMEE-Qbk8
You can download Noelle Holiday below.
https://steamcommunity.com/workshop/filedetails/?id=2904134945
You can download Guardian Stalker below.
https://steamcommunity.com/workshop/filedetails/?id=2998979613
You can download Hyrule Castle below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2606465479
You can buy Rivals of Aether below.
https://store.steampowered.com/app/383980
...
https://www.youtube.com/watch?v=--xFZI3wXD8
You can download Mystia Lorelei below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2350985664
You can download Break the Targets below.
https://steamcommunity.com/sharedfiles/filedetails/?id=2169436552
You can buy Rivals of Aether below.
https://store.steampowered.com/app/383980/Rivals_of_Aether/
...
https://www.youtube.com/watch?v=ueLD4nbbAh0