No reason other than a little harmless fun.
TV, 1968,
29 eps
Me:-
Author:-
Original
TV, 2002,
220 eps
Me:-
Author:6
Not a remake.
TV, 1975,
52 eps
Me:-
Author:-
Original (and not the only).
TV, 2016,
13 eps
Me:-
Author:7
Not a remake.
-, 1975,
20 eps
Me:-
Author:-
Original.
TV, 2009,
175 eps
Me:-
Author:8
Not a remake.
Movie, 1976,
1 ep
Me:-
Author:-
Original.
TV, 1981,
52 eps
Me:-
Author:-
They misspelled Voltar.
TV, 1963,
193 eps
Me:-
Author:-
Original.
TV, 1977,
27 eps
Me:-
Author:-
At least they changed the name.
OVA, 1991,
3 eps
Me:-
Author:-
Original.
TV, 1998,
26 eps
Me:-
Author:10
Not a remake.
ONA, 2007,
1 ep
Me:-
Author:-
Original.
TV, 2022,
12 eps
Me:-
Author:9
A remake would have been "Chainsaw Butler".
OVA, 2002,
1 ep
Me:-
Author:-
Original.
TV, 2023,
11 eps
Me:-
Author:-
Not a remake.
TV, 2019,
13 eps
Me:-
Author:7
Original.
Music, 2021,
1 ep
Me:-
Author:-
Not a remake.
Movie, 1917,
1 ep
Me:-
Author:-
The original. A traditional Japanese fable.
Movie, 2022,
1 ep
Me:-
Author:9
Not a remake.
Movie, 1958,
1 ep
Me:-
Author:-
aka The Restaurant of Many Orders
aka A Well-Ordered Restaurant
The original.
TV, 2017,
12 eps
Me:-
Author:6
Not a remake. Though there are two actual remakes: "Chuumon no Ooi Ryouriten (1991)" and "Chuumon no Ooi Ryouriten (1993)"