Crack: Shortly before being summoned, Subaru bought a set of wrist and leg bands that weigh 0.5 lbs each and started wearing them almost all the time because he thought they look cool or something, but he didn't know that their weight is compounded continuously at a rate of 50% per month.(Formula: weight of band=0.5e^(.5t) lbs, all 4 added together=2e^(.5t) lbs, t is amount of months since start). Arc 1-4 go normal or extremely close to normal, but arc 5+ and the time in between 4 and 5...
Arc 7 spoliers:
For the sake of not instantly crippling ShotaBaru, let's either have them reset to the default state if he is turned into a child or have something about the transformation allow the younger body to be able to support forces it was subject to during the transformation. If he is turned back into an adult, and they count the time he would've aged, then things get straight up absurd.
Crack: Subaru comes from a world which has checkpoints that operate like (there was originally a link to the above video at 3:00). He has like 5 on him at all times, can make more(whether that be by looting his corpse or crafting them), and others can also use them. Can start either by him placing one down right before entering the loot house or at the regular start. (expecting a bro respawned in the toiler type situation for the loot house)
In order to not have Felt stay dead, could have him place down a checkpoint right before the 3 thugs and have her happen to pass it by(can't do anything for Rom).
In order to not affect the backstory too much, you can either handwave the societal effects of checkpoints existing in the real world or the process to make them was discovered like a year before summoning.
Crack: Sonic Mania Encore mode buddy character-like respawn system, upon dying, Subaru does a Mario/Sonic death animation where he falls through the floor then drops from out of everyone's view to next whoever he is partnered up with. He partners up with someone by high-fiving them and undoes that by high-fiving them again or high-fiving someone else to partner with them. If whoever he's partnered with dies permanently(I.E. no autorevive) or he dies while not being partnered, RBD activates, your choice if partner remembers. Probably don't include being off-screened.
Crack: If Subaru says an iconic quote that is associated with a character, then that character appears in the vicinity outside of everyone's view, possibly also with something that caused them to say the quote. For example, if he said "That tornado's carrying a car!" then Sonic the Hedgehog would spawn in, possibly with a fire tornado carrying a car chasing after him if you feel like it. This activates non-intentionally. Your choice if it can activate multiple times for the same quote.
3 crack ideas: 1: Upon being summoned, Subaru's momentum is conserved(whether that be the Earth spinning or him being on a train or plane or something), so he goes flying at high speeds. Book of Wisdom adjusts the start for this.
2: Subaru comes from a world where how to do flashbacks(there was originally a link to Sonic X abridged ep. 5 where there is a flashback and the characters can talk over it, but aren't physically present) is public knowledge. Everyone is highly confused whenever he does one and your choice on how to censor failed loop flashbacks. I would expect this is used for stuff like reviewing scientific info from documentaries, music, cherished memories, and for him to have a flashback intro set up, your choice on if time passes during flashbacks. Eventually, he figures out that he can take the camera anywhere he wants and finds that areas he doesn't know what was happening are unrendered sometimes with T-posing models, like parts of a game you aren't supposed to do. An eventual thing that can be done is during one, he finds Satella in the void saying her thing and she jumpscares him(and whoever he's flashbacking with) as he stops the flashback. For extra crack, he can also do that version of a flashback where the footage is behind him as he talks, possibly with it even spawning in a physical object or it being projected on a wall or something.
3: Book of Wisdom decides to speedrun with Subaru's spawning being where it starts, which results in Roswaal grabbing Subaru as he's summoned and literally throwing him at the usual obstacles with other characters that are typically there being manipulated to happen to get there as Subaru is thrown at the obstacle or carried if that is impossible. Once the obstacle is taken care of, repeat until all obstacles are taken care of. Also, all obstacles are active in a timeframe that allows this to happen thanks to prior manipulation. (could have arc 1 have him literally spawn as Elsa is attacking Emilia in front of him and have it be ended by calling and Reinhard coming and Roswaal grabbing him, Emila, and Ram immediately after, like Kirby and the Amazing Mirror time from final boss to credits(with Subaru learning what is happening and getting to know them mid-flight, along with taught reading mid-flight during some failed loops because mid-flight checkpoint, Roswaal steers the conversation), Elsa immediately getting on a carriage set to go to the mansion for Arc 4 to meet up with Meli who's doing Arc 2 extremely soon. Extremely absurd chain of events becomes known once book is ended in Arc 4, but stuff set up to start speedrun of Arc 5+ is still in place)(Roswaal and Echidna, uses a lot of speedrunning lingo thanks to the book on the former, commenting on an RNG check whenever an If route can start, Trials speedrun the messages that they get and Tea Parties consist of relevant characters appearing for a sec. and saying an extremely abridged version of their thing then leaving, being very annoyed when Satella takes a sec. to appear and say her thing)
Crack 1: Sonic lands in Re:Zero world in the Sonic Advance 2 ending instead of landing right where he took off from(and Re:Zero world is a floating continent over Sonic world like the Lost Hex or the Chaos Emeralds decided to take him to the Re:Zero world for this). Sonic, Vanilla, and some Flickys are there, unsure if they have a phone, and they have all 7 Chaos Emeralds(Ambiguous if this is before or after Sonic learned Chaos Control, but definitely when Shadow isn't active(whether he is in a GUN or Eggman base in stasis is ambiguous)). For extra chaos, they can land in front of one or multiple people. Expect outsiders to find out about the location of the Re:Zero world quite quickly thanks to devices such as Emerald Detectors with the floating continent version. He can land at literally any part of the story including pre-summoning and at any outdoor location. (Note: IDW author said that Vanilla adventured in her youth)
Another option is to have the Advance 2 cast land in the Re:Zero world after they take down XX Zone instead of some field in the normal Advance 2 ending with the space station landing then exploding somewhere nearby, heroes landing where Vanilla happened to be for some reason(I guess she also fell there), then Vanilla kidnapped by Eggman and final boss happens, then Sonic and Vanilla land somewhere else in the Re:Zero world or the same location. This version has Team Sonic, Cream, Cheese, and previously mentioned characters and objects. Eggman would definitely know the location of the Re:Zero world. Exploding space station after it falls, Sonic going Super and then falling down after a battle in space, and the characters doing stuff would be noticed very quickly. Amy can be added if you feel like headcanoning that she was behind the main cast by a little bit and landed in a different location or something.
Either of these can easily be added to the big Sonic crossover idea I detailed in previous parts, just have Subaru get there after they leave, they are in a different part of the Re:Zero world and they leave before News gets to wherever Subaru is, or drop them on the plot at is's happening(also, probably put Advance 2 before Adventure 2).
Arc 7 spoliers: Could have him land next to Madelyn Eschart pre-cannon
Crack 2: Subaru is a Mii, or at least plays the role of a Mii, so he has the experience/weapons/powers of Miis in any game featuring Miis of your choice. Your choice if he's different from the humans of the Re:Zero world(difference between being physically a Mii or just having him and other Miis be regular people doing this stuff)
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Some Re:Zero fanfic ideas, crossover mostly
FanfictionThis was originally a big Sonic X Re:Zero fanfic idea, adding other ideas here that I felt were worth keeping. Ideas originally posted to Reddit by me(will update every so often), spoilers for stuff beyond S2 will be here, but after a warning that c...
